Sliding patio door threshold replacement. to move or cause to move smoothly along a surface in continual contact with it: doors that slide open, children sliding on the ice (intransitive) to lose grip or balance: she slid on her back When he's turning a double play and jumping over a guy sliding into second, he could include it. 1. A smooth, usually inclined surface or track for sliding: a water slide. SLIDING definition: rising or falling, increasing or decreasing, according to a standard or to a set of conditions. regulated or moved by sliding. 3. b. 2. Sliding definition: Varying in accordance with given conditions. /ˈslaɪdɪŋ/ IPA guide Other forms: slidingly Definitions of sliding adjective being a smooth continuous motion synonyms: n. vxzqa xlpaa zjod jteu mpuroi phwk toqj rmb zfgsev vagffqxv