okay okay /ˌoʊˈkeɪ/

adjective

1. () Being satisfactory or in satisfactory condition  ( cool [Informal] , hunky-dory [Informal] , ok , all right , fine , o.k. , okay , jake [Informal, N. American, Australian, New Zeland] )
   being satisfactory or in satisfactory condition
    An all-right movie
   an all-right movie
    The passengers were shaken up but are all right
   the passengers were shaken up but are all right
    Is everything all right?
   is everything all right?
    Everything's fine
   everything's fine
    Things are okay
   things are okay
    Dinner and the movies had been fine
   dinner and the movies had been fine
    Another minute I'd have been fine
   another minute I'd have been fine
   

adverb

1. In a satisfactory or adequate manner  ( alright , O.K. , okay , all right )
   in a satisfactory or adequate manner
    She'll do okay on her own
   she'll do okay on her own
    Held up all right under pressure
   held up all right under pressure
   

interjection

1. () Affirmative responses indicating agreement, understanding, or acceptance.  ( OK , okay , right , right on [Informal] , okey-doke [Informal] , okey-dokey [Informal] , righto [Informal, British] , righty-ho [Informal, British] )
   Affirmative responses indicating agreement, understanding, or acceptance.
   

noun

1. An endorsement  ( O.K. , OK , okay , okeh [Non-standard] , okey [Non-standard] )
   an endorsement
    They gave us the O.K. to go ahead
   they gave us the O.K. to go ahead
   

verb

1. Give sanction to  ( O.K. , okay , sanction , approve )
   give sanction to
    I approve of his educational policies
   I approve of his educational policies