OK
1 of 4adverb or adjective
ō-ˈkā 
in assenting or agreeing also ˈō-ˌkā
variants or okay or less commonly ok
: all right
OK, Doctor, I'll let you know
John Hersey
John HerseyOK
2 of 4noun
ō-ˈkā
variants or okay
: approval, endorsement
OK
3 of 4verb
ō-ˈkā
variants or okay
OK'd or okayed; OK'ing or okaying
transitive verb
: approve, authorize
OK
4 of 4abbreviation
Oklahoma
Synonyms
Adverb or adjective
- agreeable
- all right
- alright
- copacetic
- copasetic
- copesetic
- ducky
- fine
- good
- hunky-dory
- jake [slang]
- palatable
- satisfactory
Noun
- approbation
- approval
- blessing
- favor
- imprimatur
Verb
- accredit
- approbate
- approve
- authorize
- clear
- confirm
- finalize
- formalize
- homologate
- ratify
- sanction
- warrant
See all Synonyms & Antonyms 
Example Sentences
Noun We need her OK on this before we place the order. The boss gave his okay. Verb The boss needs to OK this before we place the order. a judge will have to OK the search warrant
Word History
Etymology
Adverb or adjective, Noun, and Verb
abbreviation of oll korrect, facetious alteration of all correct
First Known Use
Adverb Or Adjective
1839, in the meaning defined above
Noun
1841, in the meaning defined above
Verb
1888, in the meaning defined above
Phrases Containing OK
Kids Definition
OK 1 of 4
adverb or adjective
variants or okay
ō-ˈkā
: all right I think I did OK on the test. She's not the smartest kid, but she's an okay student.
OK
2 of 4noun
variants or okay
: approval sense 2
I need your OK to begin.
OK
3 of 4verb
variants or okay
OK'd or okayed; OK'ing or okaying
: approve sense 2, authorize
OK
4 of 4abbreviation
Oklahoma
OKs 1 of 2
noun
variants or okays
as in approvals
an acceptance of something as satisfactory our supervisor gave his OK on the project, so we can go ahead with it Synonyms & Similar Words
Relevance
- approvals
- consents
- supports
- blessings
- votes
- favors
- backings
- approbations
- agreements
- endorsements
- clean bills of health
- imprimaturs
- sanctions
- nods
- pats on the back
- assents
- ratifications
- finalizations
- cachets
- rubber stamps
- goodwills
- thumbs-ups
- formalizations
- indorsements
- satisfactions
- homologations
- concurrences
- benedictions
- likings
- accessions
- acceptations
- countenances
Antonyms & Near Antonyms
- disapprovals
- refusals
- dislikes
- rejections
- repudiations
- disfavors
- censures
- criticisms
- disapprobations
- condemnations
- dissatisfactions
- denunciations
- reproaches
- deprecations
- depreciations
- reprehensions
- disparagements
- reprobations
- opprobriums
OKs
2 of 2verb
variants or okays
1
as in approves
to give official acceptance of as satisfactory a judge will have to OK the search warrant Synonyms & Similar Words
- approves
- confirms
- ratifies
- authorizes
- finalizes
- sanctions
- formalizes
- warrants
- clears
- accredits
- endorses
- acknowledges
- accepts
- homologates
- affirms
- approbates
- certifies
- signs
- legalizes
- permits
- blesses
- validates
- licenses
- sanctifies
- enables
- canonizes
- indorses
- initials
- allows
- passes
- rubber-stamps
- signs off (on)
- reapproves
- licences
Antonyms & Near Antonyms
- denies
- rejects
- disapproves
- prohibits
- vetoes
- forbids
- disallows
- declines
- bans
- proscribes
- enjoins
- ignores
- refuses
- disregards
- neglects
- negatives
- spurns
- overlooks
- turns down
- interdicts
- rebuffs
- rebuts
- illegalizes
2
as in accepts
to have a favorable opinion of I'm glad that my friends OK'd my choice of girlfriend Synonyms & Similar Words
- accepts
- recommends
- favors
- supports
- enjoys
- applauds
- lauds
- likes
- praises
- goes for
- upholds
- salutes
- approves (of)
- holds with
- tolerates
- commends
- countenances
- subscribes (to)
- takes kindly to
- acclaims
- endures
- sustains
- cares (for)
- stands by
- concurs (in)
- bears
- consents (to)
- backs (up)
- assents (to)
Antonyms & Near Antonyms
- criticizes
- denounces
- disapproves (of)
- condemns
- disfavors
- censures
- disparages
- frowns (on or upon)
- deprecates
- damns
- depreciates
- hates
- dislikes
- opposes
- minds
- loathes
- detests
- discountenances
- reprehends
- blacklists
- objects (to)
- dissents (from)
- reprobates
- the north
- the North Pole
- the North Star
- the northeast
- the Northern Lights
- the northwest
- the novelty wears off
- the nub
- the obvious
- the Occident
- the occult
- the odd man out
- the odd man/one out
- the odd one out
- the odds are in favor of
- the odds are in favor of (something)
- the odds are in favor of something
- the off
- the offside
- the old adam
- the old country
- the old guard
- the old heave-ho
- the old school
- the Old Testament