crest - noun

the top line of a hill, mountain, or wave

the top or extreme point of something (usually a mountain or hill)

the center of a cambered road

(heraldry) in medieval times, an emblem used to decorate a helmet

a showy growth of e.g. feathers or skin on the head of a bird or other animal

crest - verb

• lie at the top of
• reach a high point

crest - thesaurus

cap   crown   peak   summit   tip   top