Yes, glide is a Scrabble word!

Verb

1. Move smoothly and effortlessly

2. Fly in or as if in a glider plane

3. Cause to move or pass silently, smoothly, or imperceptibly

Noun

1. A vowellike sound that serves as a consonant

2. The act of moving smoothly along a surface while remaining in contact with it

3. The activity of flying a glider