An item of play equipment that children can climb up and then slide down again.

“The long, red slide was great fun for the kids.”

A surface of ice, snow, butter, etc. on which someone can slide for amusement or as a practical joke.

The falling of large amounts of rubble, earth and stones down the slope of a hill or mountain; avalanche.

“The slide closed the highway.”

Agent noun of slide: one who slides.

A sliding door.

A pitch thrown with added pressure by middle and ring fingers yielding a combination of backspin and sidespin, resulting in a motion to the left when thrown by a right handed pitcher.