n.
Pronunciation: ' best
Function: adjective
superlative of good
Etymology: Middle English, from Old English betst; akin to Old English b ō t remedy ― more at BETTER
Date: before 12th century
1 : excelling all others <the best student>
2 : most productive of good : offering or producing the greatest advantage, utility, or satisfaction <what is the best thing to do>
3 : MOST , LARGEST <it rained for the best part of their vacation>