crest

nouns

the top line of a hill, mountain, or wave
crest
is a type of (narrower)
a spatial location defined by a real or imaginary unidimensional extent
line
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"
crest, crown, peak, summit, tip, top
the center of a cambered road
crest, crown
(heraldry) in medieval times, an emblem used to decorate a helmet
crest
is a part of
the official symbols of a family, state, etc.
arms, blazon, blazonry, coat of arms
domain category
the study and classification of armorial bearings and the tracing of genealogies
heraldry
is a type of (narrower)
special design or visual object representing a quality, type, group, etc.
emblem
a showy growth of e.g. feathers or skin on the head of a bird or other animal
crest
is a type of (narrower)
a natural prolongation or projection from a part of an organism either animal or plant
"a bony process"
appendage, outgrowth, process

verbs

lie at the top of
"Snow capped the mountains"
cap, crest
reach a high point
"The river crested last night"
crest
is a type of (narrower)
to reach the highest point; attain maximum intensity, activity
"That wild, speculative spirit peaked in 1929";"Bids for the painting topped out at $50 million"
peak, top out