Real Dictionary

crawl
verb: When an insect crawls somewhere, it moves there quite slowly.
verb: When you crawl, you move forward on your hands and knees.

crawl in American English 1
the act of crawling; slow movement
to move slowly by dragging the body along the ground, as a worm
intransitive verb: to move in a prone position with the body resting on or close to the ground, as a worm or caterpillar, or on the hands and knees, as a young child
noun: act of crawling; a slow, crawling motion
transitive verb: to visit or frequent a series of (esp. bars)

crawl in American English 2
an enclosure in shallow water for confining fish, turtles, etc.
noun: an enclosure in shallow water on the seacoast, as for confining fish, turtles, etc

crawl in British English 1
to move slowly, either by dragging the body along the ground or on the hands and knees
noun: a slow creeping pace or motion

crawl in British English 2
noun: an enclosure in shallow, coastal water for fish, lobsters, etc