Websters Wrote:OK definition
and okay

interj.
accepted; agreed. (Initialism. From a jocular, mispelled abbreviation Oll Kerrect.) : So, he said, like, “okay,” and, like, I go “okay.” So we both go “Okay.” Okay?

mod.
acceptable. : This cake is okay, but not what I would call first rate.

mod.
acceptably. : She ran okay—nothing spectacular.

n.
(someone's) acceptance. : I won't give the final okay until I see the plans.

tv.
to approve something. : She refused to okay our plans.