Words that start with O
Obsequies
Obsequies refer to funeral rites and ceremonies honoring a deceased pe...
Obsequious
Obsequious means showing excessively subservient behavior in order to ...
Obsequiousness
Obsequiousness is the act of exhibiting excessive compliance or servil...
Obsequy
Obsequy is the ceremonial observance of a funeral or burial....
Observable
Observable means perceptible or able to be seen or noticed....
Observance
Observance is the practice of following religious, social, or ceremoni...
Observant
Observant means being attentive or watchful, noticing details or chang...
Observation
Observation is the act of noticing and recording events or behaviors....
Observation car
The observation car is a railway carriage with large windows for passe...
Observation post
An observation post is a strategic post set up to keep a vigilant eye ...
Observational
Observational means relating to or based on the observation of the sub...
Observative
The meaning of observative is being observant or attentive to details ...
Observatory
An observatory is a location dedicated to observing astronomical, mete...
Observe
Observing means to notice or watch something carefully....
Observer
The meaning of observer is one who watches or notices something....
Obsess
To fixate on something constantly or excessively....
Obsessed
I'm obsessed with finding the perfect balance between work and persona...
Obsession
Obsession is an unhealthy fixation or preoccupation with someone or so...
Obsessive
The meaning of obsessive is excessive preoccupation with a particular ...
Obsessive-compulsive
Obsessive-compulsive means having obsessions and engaging in compulsio...
Obsessive-compulsive disorder
Obsessive-compulsive disorder is a mental health condition characteriz...
Obsidian
Obsidian is a type of volcanic glass formed from quickly cooling lava....
Obsidian dating
Obsidian dating is the process of determining the age of an archaeolog...
Obsidianite
Obsidianite is a type of volcanic glass formed from rapidly cooling la...
Obsidional coin
An obsidional coin is issued during a siege or other instances of econ...
Obsolesc.
Obsolescence is the process of becoming outdated or no longer in use....
Obsolesce
Obsolescence is the process of becoming outdated or no longer useful....
Obsolescence
Obsolescence is the state of becoming obsolete, no longer useful or re...
Obsolescent
The meaning of obsolescent is the process of becoming outdated or no l...
Obsolete
Obsolete means no longer in use or outdated....
Obstacle
An obstacle is a hindrance or barrier that obstructs progress or succe...
Obstacle course
An obstacle course is a challenging and physical activity that tests o...
Obstacle race
An obstacle race is a challenging race that involves navigating throug...
Obstet.
The obstet refers to the medical specialty that focuses on pregnancy a...
Obstetric
The term obstetric refers to the branch of medicine specializing in pr...
Obstetrician
An obstetrician is a medical professional specializing in pregnancy, c...
Obstetrics
Obstetrics is the medical specialty focusing on pregnancy and childbir...
Obstinacy
Obstinacy is the refusal to change one's mind or course of action, oft...
Obstinate
The meaning of obstinate is refusing to change one's opinion or course...
Obstipation
Obstipation is a severe form of constipation characterized by the inab...
Obstreperous
The meaning of obstreperous is noisy and difficult to control....
Obstruct
To obstruct something is to block, hinder, or impede its progress or m...
Obstruction
Obstruction is the act of impeding or blocking something from progress...
Obstructionist
An obstructionist is someone who deliberately obstructs progress or hi...
Obstructive
Obstructive means causing difficulty or obstruction....
Obstruent
An obstruent is a speech sound characterized by the obstruction or con...
Obtain
To obtain means to acquire or gain something through effort or action....
Obtaining by deception
Obtaining by deception means acquiring something through dishonesty or...
Obtect
"Obtect" means that the pupa is completely enclosed in a hard protecti...
Obtemper
Obtemper means to comply or obey a command or request....
Obtest
Obtest means to implore or earnestly request....
Obtrude
To obtrude means to thrust oneself or one's opinions upon others witho...
Obtrusion
Obtrusion refers to the act of intruding or imposing oneself upon ot...
Obtrusive
Obtrusive means noticeably unwanted or intrusive....
Obtund
The word "obtund" means to dull or lessen the intensity of something, ...
Obtunded
Obtunded means mentally dulled or confused....
Obturate
To obturate means to block or close off a passage or opening....
Obtuse
Obtuse means lacking sharpness or dull in understanding or perception....
Obtuse angle
An obtuse angle is an angle that is greater than 90 degrees but less t...
Obtuse triangle
An obtuse triangle is a triangle with one angle greater than 90 degree...
Obtuseness
Obtuseness refers to a lack of sharpness in understanding or perceivin...
Obuda
Obuda is a district in Budapest, Hungary, known for its historical sig...
OBulg.
OBulg means the combination of Old and Bulgarian>, referencing the anc...
Obumbrant
Obumbrant means casting a shadow over something....
Obumbrate
To obumbrate means to overshadow or obscure something....
Obv
Obv means obvious, indicating something that is easily understood or s...
Obverse
The obverse refers to the front or principal side of a coin or medal....
Obversion
Obversion is a type of logical inference in which a proposition is tra...
Obvert
Obvert means to turn towards or bring to the attention of someone or s...
Obviate
To obviate means to prevent or avoid the need for something by taking ...
Obvious
The meaning of obvious can be described as something that is clear or ...
Obviously
The meaning of obviously is something that is clearly evident or easil...
Obvolute
Obvolute means overlapping and spirally arranged....
Obwalden
Obwalden is a canton in Switzerland known for its picturesque landscap...
Oc-
The meaning of oc is the abbreviation for "of course."...
Oca
Oca is a type of tuberous root vegetable, similar to a potato, indige...
Ocala
Ocala is a city in Florida that is famous for its horse farms and natu...
OCAM
OCAM, or Online Collection Access and Management, refers to the system...
Ocarina
The ocarina is a wind instrument that produces beautiful melodies....
Occ.
The meaning of occ is abbreviation for "occupied."...
Occam
Occam refers to the principle of simplicity, where the simplest soluti...
Occam's razor
Occam's razor suggests that the simplest explanation is usually the co...
Occas.
The meaning of occas is to signify an occasional or infrequent event o...
Occasion
An occasion refers to a particular time or event that calls for a spec...
Occasional
Occasional means happening at random or infrequent intervals....
Occasional licence
An occasional licence allows for the temporary sale of alcohol at an e...
Occasional table
An occasional table is a small table designed for occasional use or as...
Occasionalism
Occasionalism is the belief that God is the direct cause of every inte...
Occasionally
Occasionally means sometimes or at irregular intervals....
Occasions
The meaning of occasions can be defined as special events or moments t...
Occident
Occident refers to the western world, particularly Europe and the Amer...
Occidental
Occidental refers to characteristics or customs of countries in the We...
Occidentalism
Occidentalism is the perception and portrayal of the West as culturall...
Occidentalize
To Occidentalize is to adapt or influence Western culture or tradition...
Occipital
The term occipital refers to the back region of the head or skull....
Occipital bone
The occipital bone is located at the back of the skull and helps prote...
Occipital condyle
The occipital condyle is a smooth, rounded projection on the occipital...
Occipital lobe
The occipital lobe is responsible for processing visual information ...
Occiput
The occiput is the back part of the head or skull....
Occitan
Occitan is a Romance language spoken in southern France, Italy, and Sp...
Occleve
Occleve is a collection of works by the medieval English poet Thomas O...
Occlude
To occlude means to block or obstruct something....
Occluded front
An occluded front occurs when a cold front overtakes a warm front, res...
Occlusion
Occlusion occurs when there is a blockage or obstruction that prevents...
Occlusive
Occlusive refers to something that blocks or obstructs a passage or op...
Occult
The occult refers to supernatural practices or beliefs that are beyond...
Occult balance
Occult balance refers to the harmony between unseen forces and energie...
Occultation
Occultation is the obscuring or blocking of one celestial body by anot...
Occulting light
The term occulting light refers to a lighthouse signal that is intermi...
Occultism
Occultism is the study of mystical beliefs and practices that are beyo...
Occultist
An occultist is someone who studies and practices esoteric knowledge a...
Occupancy
Occupancy refers to the presence and utilization of a space by individ...
Occupant
An occupant refers to a person who resides or works in a particular pl...
Occupation
Occupation is work that a person engages in to earn a living or pursue...
Occupation franchise
Occupation franchise refers to the control or governance of a territor...
Occupation groupings
Occupation groupings categorize jobs based on similar skills, duties, ...
Occupation layer
Occupation is a person's employment or principal activity typically ca...
Occupational
Occupational refers to work or employment-related activities....
Occupational disease
Occupational disease is a health condition or illness caused by exposu...
Occupational hazard
Occupational hazard refers to dangers that workers may encounter in th...
Occupational medicine
Occupational medicine focuses on the health and well-being of workers ...
Occupational pension
An occupational pension is a retirement plan set up by an employer for...
Occupational psychology
Occupational psychology is the study of how people behave at work and ...
Occupational Safety and Health Administration
The Occupational Safety and Health Administration (OSHA) is a governme...
Occupational therapy
Occupational therapy is a form of rehabilitation that helps individual...
Occupied
Occupied means being taken up or in use by someone or something....
Occupied Territories
Occupied Territories refer to areas seized and controlled by a foreign...
Occupier
Occupier refers to a person or entity that occupies or resides in a pa...
Occupy
To occupy means to fill or reside in a space or place....
Occur
The word occur means to happen or take place, typically without warnin...
Occur to one
The phrase "occur to one" means to suddenly realize or understand some...
Occurred
The meaning of occurred is to happen or take place....
Occurrence
The occurrence refers to the instance of something happening or existi...
Occurrent
Occurrent refers to something currently happening or taking place in t...
Occy
Occy means ocean in Australian slang....
OCD
OCD is a disorder characterized by repetitive thoughts and behaviors t...
OCDM
OCDM stands for Obsessive Compulsive Disorder, characterized by intrus...
Ocean
The ocean represents vastness and mystery, covering over 70% of the Ea...
Ocean City
The meaning of Ocean City can be described as a destination for beach ...
Ocean engineering
Ocean engineering is the design and construction of structures and sys...
Ocean floor spreading
Ocean floor spreading is the process where new oceanic crust is formed...
Ocean greyhound
The term ocean greyhound refers to a fast and efficient ship that trav...
Ocean liner
An ocean liner is a large passenger ship designed for the efficient tr...
Ocean marine insurance
Ocean marine insurance provides coverage for marine activities and ris...
Ocean of Storms
"Ocean of Storms" refers to a vast expanse of tumultuous waters on the...
Ocean pout
The ocean pout is a type of fish found in cold waters of the North Atl...
Ocean Springs
Ocean Springs is a charming coastal town in Mississippi known for its ...
Ocean sunfish
The ocean sunfish is a large, peculiar-looking fish known for its uniq...
Oceanarium
An oceanarium is a large aquarium showcasing marine life from various ...
Oceanaut
Oceanaut is a term referring to a voyager who explores the depths of t...
Oceanfront
Oceanfront refers to property or land that is located directly alongsi...
Oceangoing
Oceangoing refers to ships or vessels designed for travel on the ocean...
Oceania
Oceania is a region encompassing various islands in the Pacific Ocean....
Oceanian
Oceanian refers to individuals or things originating from the Oceanic ...
Oceanic
The oceanic environment refers to anything related to or found in the ...
Oceanic crust
Oceanic crust refers to the thin layer of earth's outer shell beneath ...
Oceanic ridge
An oceanic ridge is a continuous underwater mountain range formed by p...
Oceanic trench
An oceanic trench is a long, narrow, deep depression in the ocean floo...
Oceanicity
Oceanicity refers to the effect of proximity to the ocean on a region'...
Oceanid
Oceanid is a term referring to a water nymph born from the Greek god O...
Oceanog.
The oceanog is the study of the physical and biological aspects of the...
Oceanography
Oceanography is the study of the ocean and all its components, includi...
Oceanologic
The meaning of oceanologic is the study of the ocean and its character...
Oceanology
Oceanology is the study of the oceans, encompassing marine biology, ge...
Oceanside
Oceanside represents coastal beauty and tranquility....
Oceanus
Oceanus symbolizes the endless expanse of the sea....
Oceanus Procellarum
Oceanus Procellarum is a vast ocean of stormy seas on the surface of t...
Ocellar
The term ocellar refers to simple eyes found on insects that are used ...
Ocellated
The word "ocellated" means having eye-like patterns or markings....
Ocellated turkey
The ocellated turkey is a species of turkey known for its distinctive ...
Ocellation
Ocellation refers to the eye-like markings found on some animals that ...
Ocellus
An ocellus refers to a simple eye or eyespot found in certain inverteb...
Ocelot
The ocelot is a wild cat native to the Americas, known for its beautif...
Och
The meaning of och is "and" in Swedish....
Oche
An oche is a line in darts that players must stand behind when throwin...
Ocher
The ocher color is a natural earth pigment ranging from yellow to brow...
Ochlesis
Ochlesis is a term that refers to a crowd of people causing disorder a...
Ochlocracy
Ochlocracy refers to a form of government where power is held by the m...
Ochlophobia
Ochlophobia is the fear of crowds....
Ocho Rios
Ocho Rios is a tropical paradise in Jamaica known for its beautiful be...
Ochoa
Ochoa means "eighth" in Spanish, with the word eighth symbolizing the ...
Ochone
Ochone is an Irish exclamation used to express pity or sorrow....
Ochozath
Ochozath is a mysterious and powerful entity in Aztec mythology, often...
Ochozias
Ochozias is a biblical figure who was king of Israel and is known for ...
Ochratoxin
Ochratoxin is a mycotoxin produced by molds that can contaminate food ...
Ochre
Ochre is a pigment made from clay and iron oxide, typically yellow or ...
Ochrea
An ochrea is a sheath-like structure found on some plants that wraps a...
Ochroid
The meaning of ochroid is resembling or having the color of ochre....
Ochs
Ochs signifies tradition in German culture....
Ocicat
An ocicat is a domestic cat breed that resembles a wild ocelot in appe...
Ockeghem
Ockeghem was a prominent Renaissance composer whose music greatly infl...
Ocker
Ocker refers to a stereotypical Australian person, typically someone w...
Ockham
Ockham is a principle that states simpler explanations are preferable ...
Ockham, William of
Ockham, William of emphasized simplicity in his philosophy, known as O...
Ockham's razor
Ockham's razor states that the simplest explanation is usually the bes...
Ockodols
Ockodols is a term referring to a powerful being in ancient mythology,...
Ocmulgee
Ocmulgee holds significant historical importance as an ancient Native ...
Oconee-bells
The delicate oconee-bells bloom in the rich forests of the southeaster...
Ocotillo
The ocotillo is a desert plant known for its long, spiny branches topp...
OCR
OCR, or Optical Character Recognition, is a technology that converts s...
Ocracoke Island
Ocracoke Island is a tropical paradise off the coast of North Carolina...
Ocrea
Ocrea is a plant structure that forms a protective sheath around the s...
Ocreate
The term ocreate refers to something that is enclosed or protected by ...
OCS
OCS stands for Officer Candidate School, a program that trains individ...
Oct-
The prefix oct- means eight or relating to the number eight....
Octa-
Octa- refers to a prefix meaning "eight" or "eight times," indicating ...
Octachord
Octachord refers to a musical instrument with eight strings, where oct...
Octad
Octad means a group of eight things or people....
Octadecanoic acid
Octadecanoic acid, also known as stearic acid, is a saturated fatty ac...
Octagon
An octagon is a polygon with eight sides and eight angles....
Octagon house
An octagon house is a unique architectural design featuring eight side...
Octagon scale
The octagon scale represents a measuring tool with eight sides for pre...
Octagonal
An octagonal shape is a polygon with eight sides....
Octahedral
Octahedral refers to a shape that has eight faces that are all congru...
Octahedrite
An octahedrite is a type of iron meteorite characterized by a distinct...
Octahedron
An octahedron is a polyhedron with eight faces....
Octal
Octal is a numeral system that uses a base of eight, where each digit ...
Octal notation
Octal notation is a base-8 numbering system that uses digits 0 to 7 to...
Octamer
An octamer is a group of eight molecules or units....
Octamerous
Octamerous refers to a floral arrangement in groups of eight....
Octameter
Octameter is a verse form consisting of eight metrical feet per line....
Octan
Octan is a type of hydrocarbon fuel commonly used in gasoline....
Octandrious
Octandrious means having eight stamens in a flower....
Octane
The octane rating of a fuel indicates its resistance to pre-ignition i...
Octane number
The octane number indicates the resistance of a fuel to knocking in an...
Octanedioic acid
Octanedioic acid is a dicarboxylic acid commonly used in the productio...
Octangle
An octangle is a geometric shape with eight sides and eight angles....
Octangular
Octangular refers to a shape with eight sides or angles....
Octanoic acid
Octanoic acid is a type of fatty acid with eight carbon atoms in its c...
Octans
Octans refers to a constellation located in the southern hemisphere....
Octant
An octant is a geometric region that represents one eighth of a three-...
Octarchy
Octarchy refers to a ruling system comprising eight individuals or gro...
Octaroon
The term octaroon refers to a person who is one-eighth black....
Octastyle
Octastyle refers to a building or structure with eight columns across ...
Octateuch
The octateuch refers to the first eight books of the Old Testament in ...
Octavalent
Octavalent refers to a molecule that has eight atoms or ions in its st...
Octave
An octave is a musical interval spanning eight notes on a scale....
Octave coupler
An octave coupler is an organ stop that enables lower notes to sound o...
Octavia
Octavia is a fascinating novel that explores themes of race, love, and...
Octavian
Octavian, also known as Augustus, was the first emperor of Rome and pl...
Octavius
Octavius was a Roman statesman and military leader who played a key ro...
Octavo
Octavo refers to a book size that is small and compact, typically prod...
Octavus
Octavus means eighth in Latin....
Octennial
Octennial means occurring every eight years....
Octet
The term octet refers to a group of eight bits....
Octillion
Octillion is a number equivalent to 1 followed by 27 zeros....
Octo-
The prefix octo indicates a quantity of eight....
October
The changing colors of autumn are captured in the essence of October....
October Revolution
The October Revolution was a groundbreaking event in Russian history t...
Octobrist
An Octobrist is a person committed to the principles of the Russian Oc...
Octocentenary
Octocentenary refers to a period of 800 years....
Octodecillion
Octodecillion refers to the number 1057....
Octodecimo
Octodecimo refers to a book size that is one-eighteenth the size of a ...
Octofoil
An octofoil is a decorative motif with eight lobes or leaves radiating...
Octogenarian
An octogenarian is someone who is in their eighties age-wise....
Octomerous
The term octomerous refers to a floral arrangement with parts in multi...
Octometer
Octometer is a poetic form consisting of eight metrical feet per line....
Octonary
The term "octonary" refers to a grouping or set of eight things or ele...
Octopod
Octopod refers to a marine animal with eight limbs....
Octopus
The octopus is a fascinating sea creature known for its intelligence a...
Octoroon
"Octoroon" refers to a person who is one-eighth Black....
Octosyllabic
Octosyllabic means having lines of poetry containing eight syllables....
Octosyllable
Octosyllable refers to a line of poetry containing eight syllables....
Octothorpe
An octothorpe is a symbol used to denote a hashtag on social media pla...
Octroi
Octroi is a tax levied on goods entering a town or city, primarily at ...
Octuple
Octuple means to increase something by eight times, making it eightfol...
Octuplet
An octuplet refers to a set of eight offspring born from the same preg...
Octuplicate
Octuplicate means eight times or in eightfold....
Octyl alcohol
Octyl alcohol is a type of alcohol that contains eight carbon atoms in...
Octyl phenol
Octyl phenol is a chemical compound often used as a surfactant in vari...
Ocul-
The word ocul- refers to something related to the eyes....
Ocular
The term ocular refers to something related to the eye....
Ocularist
An ocularist is a professional who specializes in the creation and fit...
Oculate
Oculate means having eyes or eye-like structures....
Oculist
An oculist is a medical professional who specializes in the treatment ...
Oculo-
The prefix oculo- pertains to the eyes....
Oculoauriculovertebral dysplasia
Oculoauriculovertebral dysplasia is a congenital craniofacial syndrome...
Oculomotor
Oculomotor refers to the eye movements controlled by the oculomotor ne...
Oculomotor nerve
The oculomotor nerve is responsible for controlling most of the eye mu...
Oculus
Oculus is a term that refers to an eye or a circular opening, commonly...
Od
OD is a term that refers to the dose of a medication prescribed by a d...
Oda
Oda is a lyrical poem meant to praise and celebrate a specific subject...
Oda Nobunaga
Oda Nobunaga was a powerful daimyo who played a crucial role in the un...
Odah
Odah means promise in Arabic....
Odalisque
Odalisque refers to a female slave or concubine in a harem, often depi...
Odd
Odd means unusual or different from what is expected....
Odd couple
The odd couple refers to a pair of people who are markedly different f...
Odd Fellow
An Odd Fellow is a member of a fraternal organization dedicated to cha...
Odd lot
Odd lot refers to the trading of a quantity of securities that is not ...
Odd man out
Odd man out means the unique or different one in a group or set....
Odd number
An odd number is a number that cannot be divided evenly by 2....
Odd or even
Odd or even numbers refer to integers that are either even or odd, res...
Odd permutation
An odd permutation is a rearrangement of elements that requires an odd...
Odd trick
The odd trick is an unusual or unexpected technique that surprises or ...
Odd-even check
The odd-even check involves verifying if a number is divisible by 2 or...
Odd-job
Odd-job refers to a casual or occasional task, typically one that is s...
Odd-jobman
An odd-jobman is a person who performs various small tasks or jobs....
Odd-lotter
An odd-lotter is someone who trades securities in small quantities tha...
Odd-man
An odd-man refers to a situation where one individual is left out or i...
Odd-man rush
An odd-man rush refers to an offensive opportunity created when a team...