crest vs sex activity

crest and sex activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
crest	Yes	No	Yes	No
sex activity	Yes	No	No	No

crest (noun)	sex activity (noun)
a showy growth of e.g. feathers or skin on the head of a bird or other animal	activities associated with sexual intercourse
(heraldry) in medieval times, an emblem used to decorate a helmet
the center of a cambered road
the top line of a hill, mountain, or wave
the top or extreme point of something (usually a mountain or hill)

crest (verb)	sex activity (verb)
reach a high point
lie at the top of