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."