best - definition in the American English Dictionary - Cambridge Dictionaries Online (US)

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English definition of “best”

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best

adjective, adverb  us   /best/

best adjective, adverb (HIGHEST QUALITY)

of the highest quality, to the greatest degree, in the most effective way, or being the most suitable or pleasing; superlative of good or well : He’s one of our best students. Which of the songs did you like best? She was my best friend at school.best bet Someone’s best bet is the action most likely to be successful: If you want to get to the theater on time, your best bet is to get a cab.Best wishes Best wishes is a polite way of finishing a letter to someone.

best

noun [U]  us   /best/

best noun [U] (EXCELLENCE)

the most excellent in a group of things or people: As an athlete, Jim Thorpe is one of the best of all time. I like all of Hitchcock’s films, but I think "Notorious" is the best.

best

verb [T]  us   /best/

best verb [T] (DEFEAT)

to defeat someone in a fight or competition: In chess, I was bested by my 13-year-old niece.
(Definition of best from the Cambridge Academic Content Dictionary © Cambridge University Press)
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