a battery a • a bit · · · Info · Definitions · Characters · · a battery · · Text Common · · Latin · · Scripts 9 · · Length 4 · · Syllables Definitions · · · (noun) the battery used to heat the filaments of a vacuum tube. Synonyms: A battery. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079