Definition of best adverb from the Oxford Advanced Learner's Dictionary



    BrE BrE//best//
    ; NAmE NAmE//best//
    (superlative of well, often used in adjectives)
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  1. 1  most; to the greatest extent Which one do you like best? Well-drained soil suits the plant best. her best-known poem
  2. 2  in the most excellent way; to the highest standard He works best in the mornings. Britain’s best-dressed woman The beaches are beautiful, but, best of all, there are very few tourists.
  3. 3  in the most suitable or appropriate way Painting is best done in daylight. Do as you think best (= what you think is the most suitable thing to do).
  4. Word OriginOld English betest (adjective), betost, betst (adverb), of Germanic origin; related to Dutch and German best, also to better.Idioms not perfectly but as well as you are able We'll manage as best we can.
See the Oxford Advanced American Dictionary entry: best