cavity wall cavity source • caviuna wood · · · Info · Definitions · Characters · · cavity wall · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (noun) a wall formed of two thicknesses of masonry with a space between them. Synonyms: cavity wall. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 l latin small letter l U+006C t latin small letter t U+0074 v latin small letter v U+0076 w latin small letter w U+0077 y latin small letter y U+0079