n The summit of a hill or mountain ridge.
n A tuft, or other natural ornament, growing on an animal's head, for example the comb of a cockerel, the swelling on the head of a snake, the lengthened feathers of the crown or nape of bird, etc.
n The plume of feathers, or other decoration, worn on or displayed on a helmet; the distinctive ornament of a helmet.
n (heraldry) A bearing worn, not upon the shield, but usually on a helmet above it, sometimes (as for clerics) separately above the shield or separately as a mark for plate, in letterheads, and the like.
n The upper curve of a horse's neck.
n The ridge or top of a wave.
n The helm or head, as typical of a high spirit; pride; courage.
n The ornamental finishing which surmounts the ridge of a roof, canopy, etc.
n The top line of a slope or embankment.
n (anatomy) A ridge along the surface of a bone.
n (informal) A design or logo, especially one of an institution, sports club, association or high-class family.
n Any of several birds in the family Regulidae, including the goldcrests and firecrests.
v (intransitive) Particularly with reference to waves, to reach a peak.
v (transitive) To reach the crest of (a hill or mountain)
v To furnish with, or surmount as, a crest; to serve as a crest for.
v To mark with lines or streaks like waving plumes.
n A census-designated place in San Diego County, California, United States.
n (military) Acronym of comparisons, reasons, examples, statistics, testimony: the five types of verbal support used to enhance an oral presentation.