crest
noun
1. the top line of a hill, mountain, or wave
Definition categories: location, line
2. the top or extreme point of something (usually a mountain or hill)
Similar word(s): crown, peak, summit, tip, top
Definition categories: location, place, spot
3. the center of a cambered road
Similar word(s): crown
Definition categories: man–made, top, upside
4. (heraldry) in medieval times, an emblem used to decorate a helmet
Definition categories: man–made, emblem
5. a showy growth of e.g. feathers or skin on the head of a bird or other animal
Definition categories: animal, appendage, outgrowth, process