1. to move along in continuous contact with a smooth or slippery surface: to slide down a snow-covered hill.
2. to slip or skid.
3. to glide or pass smoothly.
4. to slip easily, quietly, or unobtrusively on or as if on a track, channel, or guide rail (usually followed by in, out, away, etc.).
5. to pass or fall gradually into a specified state, character, practice, etc.
6. to decline or decrease: Interest rates are beginning to slide.
7. (of a base runner) to cast oneself, usually feet first, forward along the ground in the direction of the base being approached, to present less of a target for a baseman attempting to make a tag.

8. to cause to slide, slip, or coast, as over a surface or with a smooth, gliding motion.
9. to hand, pass along, or slip (something) easily or quietly (usually followed by in, into, etc.): to slide a note into someone's hand.

10. an act or instance of sliding.
11. a smooth surface for sliding on, especially a type of chute in a playground.
12. an object intended to slide.
13. Geology.
• a landslide or the like.
• the mass of matter sliding down.
14. a single transparency, object, or image for projection in a projector, as a lantern slide.
15. a small positive color transparency mounted for projection on a screen or magnification through a viewer.
16. a usually rectangular plate of glass on which objects are placed for microscopic examination.
17. a shelf sliding into the body of a piece when not in use.
18. Music.
• an embellishment consisting of an upward or downward series of three or more tones, the last of which is the principal tone.
• a portamento.
• a U-shaped section of the tube of an instrument of the trumpet class, as the trombone, that can be pushed in or out to alter the length of the air column and change the pitch.
19. a vehicle mounted on runners, for conveying loads, as of grain or wood, especially over a level surface.
20. (of a machine or mechanism)
• a moving part working on a track, channel, or guide rails.
• the surface, track, channel, or guide rails on which the part moves.
21. any of various chutes used in logging, mining, or materials handling.
22. a flat or very low-heeled, backless shoe or slipper that can be slipped on and off the foot easily.

23. to allow to deteriorate, pursue a natural course, etc., without intervention on one's part: to let things slide.

1. to move or cause to move smoothly along a surface in continual contact with it
2. to lose grip or balance
3. to pass or move gradually and unobtrusively
4. to go (into a specified condition) by degrees, unnoticeably, etc
5. to move (an object) unobtrusively or (of an object) to move in this way
6. to execute a portamento
7. to allow to follow a natural course, esp one leading to deterioration

8. the act or an instance of sliding
9. a smooth surface, as of ice or mud, for sliding on
10. a construction incorporating an inclined smooth slope for sliding down in playgrounds, etc
11. a sliding seat in a boat or its runners
12. a thin glass plate on which specimens are mounted for microscopic study
13. a positive photograph on a transparent base, mounted in a cardboard or plastic frame or between glass plates, that can be viewed by means of a slide projector
14. an ornamental clip to hold hair in place
15. machinery
• a sliding part or member
• the track, guide, or channel on or in which such a part slides
16. music
• the sliding curved tube of a trombone that is moved in or out to allow the production of different harmonic series and a wider range of notes
• a portamento
17. music
• a metal or glass tube placed over a finger held against the frets of a guitar to produce a portamento
• the style of guitar playing using a slide
18. geology
• the rapid downward movement of a large mass of earth, rocks, etc, caused by erosion, faulting, etc
• the mass of material involved in this descent

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