The word okay is a overloaded and ambiguous word used for right about anything. The difference can be in the tone at which it is said or written.
It is apparently the single most used word in the world due to its simplicity and adoption in a number of other languages. It originated from the abbreviation O.K. and not the corollary.
The usage can be very tricky,
"He is okay"
What does that mean?
He is good and not exceptional.
He is average and not good.
He is poor but not terrible.
He is terrible but not evil.
Husband: I have got some urgent work and so am cancelling our dinner plans.
Yes? Think about it? Maybe? As you wish? No way?
Beats me again!!
President Bush is talking to his Secretary of Defense over the phone,
Secretary: Hello Mr.President
Bush: So what have you got?
Secretary: Need permission to deploy and fire.
Bush: Okay (Secretary launches nuke and starts world war III), what did you just say??
"Okay" is neither yes or no. It can mean so many different things
and is still so commonly used. It leads to confusion and chaos.
Its usage should thus be abolished
And thank god 'okay' is not a keyword in modern programming languages.
Lets work towards banning it!Okay?