Yes, slide is a Scrabble word!

Verb

1. Move obliquely or sideways, usually in an uncontrolled manner

2. To pass or move unobtrusively or smoothly

3. Move smoothly along a surface

Noun

1. A small flat rectangular piece of glass on which specimens can be mounted for microscopic study

2. (geology) the descent of a large mass of earth or rocks or snow etc.

3. (music) rapid sliding up or down the musical scale

4. Plaything consisting of a sloping chute down which children can slide

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

6. A transparency mounted in a frame; viewed with a slide projector

7. Sloping channel through which things can descend