Definition of "Crawl" :
noun: a slow mode of locomotion on hands and knees or dragging the body
"A crawl was all that the injured man could manage."
noun: a very slow movement
"The traffic advanced at a crawl."
noun: a swimming stroke; arms are moved alternately overhead accompanied by a flutter kick
verb: move slowly; in the case of people or animals with the body near the ground
"The crocodile was crawling along the riverbed."
verb: swim by doing the crawl
"European children learn the breast stroke; they often don't know how to crawl."
verb: show submission or fear
verb: be full of
"The old cheese was crawling with maggots."
verb: feel as if crawling with insects
"My skin crawled--I was terrified."