Yes, knit is a Scrabble word!
...and is worth 8 points in Scrabble, and 9 points in Words with Friends
knit
Verb
1. Make (textiles) by knitting
2. Tie or link together
3. To gather something into small wrinkles or folds
Noun
1. A fabric made by knitting
2. A basic knitting stitch
3. Needlework created by interlacing yarn in a series of connected loops using straight eyeless needles or by machine
What Scrabble words can I make with the letters in knit?
3 Letter Words
2 Letter Words