1a structure with a smooth sloping surface for children to slide down: Anna played on the slide a smooth stretch or slope of ice or packed snow for sliding or tobogganing on. 2an act of sliding along a smooth surface:use an ice axe to halt a slide on ice and snow Baseball a sliding approach made to a base along the ground. [usually in combination or with noun modifier] (in skateboarding and snowboarding) a manoeuvre in which the board slides along an obstacle such as a rail or the edge of a ramp. 3a decline in value or quality:the current slide in house prices 4a part of a machine or instrument that slides. the place on a machine or instrument where a sliding part operates. [mass noun] slide guitar:I’d been playing slide for years 5a rectangular piece of glass on which an object is mounted or placed for examination under a microscope. a mounted transparency, especially one placed in a projector for viewing on a screen: [as modifier]:a slide show 6British a hairslide: her hair was held back with a tortoiseshell slide
7a sandal or light shoe without a back.
move smoothly along a surface while maintaining continuous contact with it:she slid down the bank into the water (as adjective sliding)the tank should have a sliding glass cover [with object and adverbial of direction] move (something) smoothly along a surface:she slid the keys over the table move smoothly, quickly, or unobtrusively: [no object]:I quickly slid into a seat at the back of the hall [with object]:she slid the bottle into her pocket change gradually to a worse condition or lower level:the country faces the prospect of sliding from recession into slump