adjective1. the superlative of good
2. most excellent of a particular group, category, etc
3. most suitable, advantageous, desirable, attractive, etc
4. the best part of
5. put one's best foot forward
adverb6. the superlative of well1
7. in a manner surpassing all others; most excellently, advantageously, attractively, etc
8. (in combination) in or to the greatest degree or extent; most
the best-loved hero
9. as best one can
10. had best
noun11. the best
12. (often preceded by at) the most excellent, pleasing, or skilled quality or condition
journalism at its best
13. the most effective effort of which a person or group is capable
even their best was inadequate
14. a winning majority
the best of three games
15. Also: all the best best wishes
she sent him her best
16. a person's smartest outfit of clothing
17. at best
18. for the best
19. get the best of
20. give someone the best
21. make the best of
22. six of the best
verb23. (transitive) to gain the advantage over or defeat