One's best behavior.
The person (or persons; or thing or things) that is (are) most excellent.
The supreme effort one can make, or has made.
Most; largest.
Most superior; most favorable.
Had best.
To surpass in skill or achievement.
To beat in a contest.
To the most advantage; with the most success, cause, profit, benefit, or propriety.
The best or most preferable part.
One selection or preference; that which is chosen or decided; the outcome of a decision.
Anything that can be chosen.
The power to choose.
Do I have a choice of what color to paint it?
An option; a decision; an opportunity to choose or select something.
Especially good or preferred.
Cool; excellent.