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312 entries · Filtering by “O”
- obsceneadjective
Offensive or disgusting by accepted standards of morality and decency, especially relating to sexual matters.
- obscureadjective/verb
Not discovered or known about; uncertain.
- observationnoun
The action or process of observing something or someone carefully.
- observationsnoun
Plural of observation; multiple remarks or comments based on what one has noticed.
- observeverb
To notice or perceive something and register it as being significant.
- observedverb/adjective
Past tense and past participle of observe; watched or noticed something.
- observernoun
A person who watches or notices something.
- observingverb
Present participle of observe; the act of watching or noticing something carefully.
- obsessedadjective
Preoccupied or filled with thoughts of something or someone to a troubling extent.
- obsessionnoun
An idea or thought that continually preoccupies or intrudes on a person's mind.
- obsessiveadjective/noun
Of the nature of an obsession; preoccupying one's thoughts excessively.
- obstaclenoun
A thing that blocks one's way or prevents or hinders progress.
- obstaclesnoun
Plural of obstacle; multiple things that block progress or hinder movement.
- obstructionnoun
A thing that impedes or blocks; a blockage.
- obtainverb
To get, acquire, or secure something.
- obtainedverb
Past tense and past participle of obtain; got or acquired something.
- obviousadjective
Easily perceived or understood; clear and self-evident.
- obviouslyadverb
In a way that is easily perceived or understood; clearly.
- occasionnoun/verb
A particular time or instance of an event.
- occasionaladjective
Occurring, appearing, or done infrequently and irregularly.
- occasionallyadverb
At infrequent or irregular intervals; now and then.
- occasionsnoun
Plural of occasion; multiple particular times or instances of events.
- occupationnoun
A job or profession.
- occupiedadjective
(Of a space or seat) Being used by someone.
- occupyverb
To reside or have one's place of business in a building.
- occurverb
To happen; to take place.
- occurredverb
Past tense and past participle of occur; happened or took place.
- occursverb
Third person singular present of occur; happens or takes place.
- oceannoun
A very large expanse of sea, especially one of the five main areas into which the sea is divided geographically.
- oceansnoun
Plural of ocean; the five major bodies of salt water (Pacific, Atlantic, Indian, Southern, and Arctic).
- octnoun
An abbreviation for October, the tenth month of the year.
- octopusnoun
A cephalopod mollusk with eight sucker-bearing arms, a soft sac-like body, and strong beak-like jaws.
- odnoun
(noun, informal) An overdose, especially of a narcotic drug.
- oddadjective
Strange or unusual; different from what is expected or ordinary.
- oddlyadverb
In a strange or unusual manner.
- oddsnoun
The probability or likelihood of something happening or being the case.
- ofpreposition
Expressing the relationship between a part and a whole.
- offadverb
Away from a place or position.
- offencenoun
(British spelling) A breach of a law or rule; an illegal act or crime.
- offendverb
(transitive) To cause someone to feel hurt, upset, or insulted.
- offendedadjective
Feeling hurt, upset, or resentful because of a perceived insult or disrespectful treatment.
- offendernoun
A person who commits an illegal act or breaks a rule.
- offendersnoun
Plural of offender; people who commit illegal acts or break rules.
- offensenoun
(American spelling) A breach of a law or rule; an illegal act or crime.
- offensiveadjective
(adjective) Causing someone to feel hurt, upset, or insulted.
- offerverb
To present something for acceptance or rejection.
- offeredverb
Past tense and past participle of "offer"; presented something for acceptance or rejection.
- offeringnoun
(noun) Something presented as a gift, especially to a deity or for a religious purpose.
- offersnoun
(noun, plural) Proposals or expressions of willingness to do something or give something.
- officenoun
A room or building where people work, typically at desks.