Definition of O.K.

1. Adverb. In a satisfactory or adequate manner. "Held up all right under pressure"

Exact synonyms: All Right, Alright, Okay
Language type: Colloquialism

2. Adjective. Being satisfactory or in satisfactory condition. "Another minute I'd have been fine"
Exact synonyms: All Right, Fine, Hunky-dory, Ok, Okay
Language type: Colloquialism
Similar to: Satisfactory

3. Verb. Give sanction to. "I approve of his educational policies"
Exact synonyms: Approve, Okay, Sanction
Generic synonyms: Authorise, Authorize, Clear, Pass
Specialized synonyms: Sanction, Visa, Back, Endorse, Indorse, Plump For, Plunk For, Support, Confirm
Derivative terms: Approbation, Approbative, Approval, Approver, Ok, Okay, Sanction
Antonyms: Disapprove

4. Noun. An endorsement. "They gave us the O.K. to go ahead"
Exact synonyms: Ok, Okay, Okeh, Okey
Generic synonyms: Countenance, Endorsement, Imprimatur, Indorsement, Sanction, Warrant
Derivative terms: Okay

Lexicographical Neighbors of O.K.

O-R system
O-acetylhomoserine (thiol)-lyase
O-antigen depolymerase
O-antigen polymerase
O-diethylaminoethyl cellulose
O-level
O-phosphocholine
O-phosphono-
O-phosphoserine
O-ring
O-rings
O-sialoglycoprotein endopeptidase
O-succinylhomoserine (thiol)-lyase
O.E.D.
O.K. (current term)
O.M.
O. Henry
O/O
OA
OADM
OAL
OAP
OAPs
OAS
OASIS
OAV
OAV syndrome
OAVs
OAX

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