ok
US /ˌoʊˈkeɪ/
UK /ˌoʊˈkeɪ/

1.
used to express assent, agreement, or acceptance
:
•
“Let's meet at 7 PM.” “OK.”
•
Is it OK if I borrow your pen?
1.
in a satisfactory or acceptable manner
:
•
Everything went OK with the presentation.
•
Are you feeling OK now?
1.
satisfactory; acceptable
:
•
The food was just OK, nothing special.
•
The quality of the product is OK for the price.
1.
an act of approval or authorization
:
•
We need to get an OK from the boss before proceeding.
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The project received the final OK yesterday.