Yes, gait is a Scrabble word!
...and is worth 5 points in Scrabble, and 6 points in Words with Friends
gait
Noun
1. The rate of moving (especially walking or running)
2. A horse's manner of moving
3. A person's manner of walking
What Scrabble words can I make with the letters in gait?
3 Letter Words
2 Letter Words