GO

noun

1. The act of going.
2. A turn at something, or in something (e.g. a game).
3. An attempt, a try.

verb

1. To move:
2. (chiefly of a machine) To work or function (properly); to move or perform (as required).
3. To start; to begin (an action or process).

adjective

1. Working correctly and ready to commence operation; approved and able to be put into action.