[n] a showy growth of e.g. feathers or skin on the head of a bird or other animal
[n] (heraldry) in medieval times, an emblem used to decorate a helmet
[n] the center of a cambered road
[n] the top line of a hill, mountain, or wave
[n] the top point of a mountain or hill; "the view from the peak was magnificent"; "they clambered to the summit of Monadnock"
[v] reach a high point; "The river crested last night"
[v] lie at the top of; "Snow capped the mountains"