call waiting call up • call-back · · · Info · Definitions · Characters · · call waiting · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) a way of letting you know that someone else is calling when you are using your telephone. Synonyms: call waiting. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E t latin small letter t U+0074 w latin small letter w U+0077