Yes, crawl is a Scrabble word!

Verb

1. Move slowly; in the case of people or animals with the body near the ground

2. Feel as if crawling with insects

3. Be full of

4. Show submission or fear

5. Swim by doing the crawl; they often don't know how to crawl"

Noun

1. A very slow movement

2. A swimming stroke; arms are moved alternately overhead accompanied by a flutter kick

3. A slow mode of locomotion on hands and knees or dragging the body