KAY

interjection

1. Used to indicate acknowledgement or acceptance.
2. Used to introduce a sentence in order to draw attention to the importance of what is being said.
3. Used in turn-taking, serving as a request to the speaker to grant the turn to the interrupter.

noun

1. A small, low island largely made of sand or coral.

noun

1. The name of the Latin-script letter K.
2. A kilometer.
3. A thousand of some unit (from kilo-).