| Noun | 1. | crest - the top line of a hill, mountain, or waveline - a spatial location defined by a real or imaginary unidimensional extent | |
| 2. | crest - the top point of a mountain or hill; "the view from the peak was magnificent"; "they clambered to the summit of Monadnock"hilltop, brow - the peak of a hill; "the sun set behind the brow of distant hills" place, spot, topographic point - a point located with respect to surface features of some region; "this is a nice place for a picnic" | |
| 3. | crest - the center of a cambered roadroad, route - an open way (generally public) for travel or transportation top side, upper side, upside, top - the highest or uppermost side of anything; "put your books on top of the desk"; "only the top side of the box was painted" | |
| 4. | crest - (heraldry) in medieval times, an emblem used to decorate a helmetemblem - special design or visual object representing a quality, type, group, etc. heraldry - the study and classification of armorial bearings and the tracing of genealogies | |
| 5. | crest - a showy growth of e.g. feathers or skin on the head of a bird or other animaltuft - a bunch of feathers or hair topknot - showy crest or knot of hair or feathers comb, coxcomb, cockscomb - the fleshy red crest on the head of the domestic fowl and other gallinaceous birds appendage, outgrowth, process - a natural prolongation or projection from a part of an organism either animal or plant; "a bony process" | |
| Verb | 1. | crest - lie at the top of; "Snow capped the mountains"lie - be located or situated somewhere; occupy a certain position | |
| 2. | crest - reach a high point; "The river crested last night"peak - to reach the highest point; attain maximum intensity, activity; "That wild, speculative spirit peaked in 1929" | |