1. Being satisfactory or in satisfactory condition
   "the passengers were shaken up but are o.k.";
   - all right, fine, OK, okay, hunky-dory [informal], cool [informal], alright, jake [N. Amer, Austral, NZ, informal]

1. In a satisfactory or adequate manner
   "she'll do O.K. on her own";
   - okay, all right, alright, OK

1. An endorsement
   "they gave us the O.K. to go ahead";
   - OK, okay, okey [non-standard], okeh [non-standard]

1. Give permission or approval for something
   "I will O.K. his educational policies";
   - approve, okay, sanction, green-light, greenlight, OK

1. Expresses agreement or acceptance
   - okay, okey-doke [informal], okey-dokey [informal], righto [Brit, informal], righty-ho [Brit, informal], right, right on [informal]

1. An expression of agreement normally occurring at the beginning of a sentence
   "OK, let's get started on the task";
   - very well, fine, alright, all right, all righty [non-standard], righty-ho [Brit, informal]

1. A state in south central United States
   - Oklahoma, Sooner State, Okla.

Derived forms: OKs, OK'ed, OK'ing

See also: satisfactory

Type of: American state, authorise [Brit], authorize, clear, countenance, endorsement, imprimatur, indorsement, pass, sanction, warrant

Antonym: disapprove

Part of: America, 'Merica, the States, U.S., U.S.A., United States, United States of America, US, USA

Encyclopedia: OK, Let's Stand Up!