crest in WordNet English dictionary

1. lie at the top of
   "Snow capped the mountains"
   cap  crest 
   
2. reach a high point
   "The river crested last night"
   crest 
   

1. a showy growth of e.g. feathers or skin on the head of a bird or other animal
   crest 
   
2. (heraldry) in medieval times, an emblem used to decorate a helmet
   crest 
   
3. the center of a cambered road
   crown  crest 
   
4. the top line of a hill, mountain, or wave
   crest 
   
5. 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"
   peak  crown  crest  top  tip  summit