1. Being a smooth continuous motion
   "The sliding doors opened silently as we approached"

1. Move smoothly along a surface
   "He slid the money over to the other gambler"
    
2. To pass or move unobtrusively or smoothly
   "They slid through the wicket in the big gate";
   - slither
    
3. Move obliquely or sideways, usually in an uncontrolled manner
   "the wheels slid against the pavement";
   - skid, slip, slue, slew

See also: slippery, slippy [Brit, informal]

Type of: displace, glide, go, locomote, move, travel

Encyclopedia: Sliding