crest

the top line of a hill, mountain, or wave

the top or extreme point of something (usually a mountain or hill); "the view from the peak was magnificent"; "they clambered to the tip of Monadnock"; "the region is a few molecules wide at the summit"

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

lie at the top of; "Snow capped the mountains"

reach a high point; "The river crested last night"