locomotion vs crawl

locomotion and crawl both are nouns.

Word	Noun	Adjective	Verb	Adverb
locomotion	Yes	No	No	No
crawl	Yes	No	Yes	No

As nouns, crawl is a hyponym of locomotion; that is, crawl is a word with a more specific, narrower meaning than locomotion:

locomotion (noun)	crawl (noun)
self-propelled movement	a slow mode of locomotion on hands and knees or dragging the body
the power or ability to move	a swimming stroke; arms are moved alternately overhead accompanied by a flutter kick
	a very slow movement

locomotion (verb)	crawl (verb)
	move slowly; in the case of people or animals with the body near the ground
	swim by doing the crawl
	show submission or fear
	be full of
	feel as if crawling with insects