Definitions of slide:

• noun:   the act of moving smoothly along a surface while remaining in contact with it

  Example: "His slide didn't stop until the bottom of the hill"

• noun:   a transparency mounted in a frame; viewed with a slide projector
• noun:   a small flat rectangular piece of glass on which specimens can be mounted for microscopic study
• noun:   plaything consisting of a sloping chute down which children can slide
• noun:   (geology) the descent of a large mass of earth or rocks or snow etc.
• noun:   sloping channel through which things can descend
• noun:   (music) rapid sliding up or down the musical scale

  Example: "The violinist was indulgent with his swoops and slides"

• verb:   move smoothly along a surface
• verb:   to pass or move unobtrusively or smoothly
• verb:   move obliquely or sideways, usually in an uncontrolled manner