To beat in a contest.
Had best.
To surpass in skill or achievement.
To the most advantage; with the most success, cause, profit, benefit, or propriety.
Most; largest.
Most superior; most favorable.
The person (or persons; or thing or things) that is (are) most excellent.
The supreme effort one can make, or has made.
One's best behavior.
To outdo or defeat, especially in battle.
Most unfavorable.
Used with the definite article and an implied noun: something that is worst.
Most inferior; doing the least good.
Most harmful or severe.
Something or someone that is the worst.