Meaning – The term OK, refers to a push button that accepts the information in a window and closes it. If the window contains changed information, those changes are applied before the window is closed.
OK is an English word denoting approval, acceptance, agreement, assent, acknowledgment, or a sign of indifference. OK is frequently used as a loanword in other languages. It has been described as the most frequently spoken or written word on the planet.
As an adjective, OK principally means “adequate” or “acceptable” as a contrast to “bad” (“The boss approved this, so it is OK to send out”); it can also mean “mediocre” when used in contrast with “good”.