piano action piano accordion • piano damper · · · Info · Definitions · Characters · · piano action · · Text Common · · Latin · · Scripts 12 · · Length 5 · · Syllables Definitions · · · (noun) action consisting of a system of levers that move a felt hammer to strike the strings when a key is depressed. Synonyms: piano action. · · 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 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 t latin small letter t U+0074