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English definition of “best”

best

adjective     /best/
A1 of the highest quality, or being the most suitable, pleasing, or effective type of thing or person: This is the best meal I've ever had. He's one of our best students. Are you sure this is the best way of doing it? What's the best (= shortest or quickest) way to get to the station? Your parents only want what is best for you. She was my best friend (= the friend I liked most). It's best (= it is wise) to get to the supermarket early.Good, better and bestInformal words for goodQuite good, or not very good
(Definition of best adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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