signal-to-noise signal siren • signal-to-noise ratio · · · Info · Definitions · Synonyms · Characters · · signal-to-noise · · Text Common · · Latin · · Scripts 15 · · Length 4 · · Syllables Definitions · · · (noun) the ratio of signal intensity to noise intensity. Synonyms: signal-to-noise ratio, signal/noise ratio, signal/noise, S/N. · · Noun Definition 1 Synonyms · · · signal-to-noise ratio · · Synonym 1 signal/noise ratio · · Synonym 2 signal/noise · · Synonym 3 s/n · · Synonym 4 Characters · · - hyphen-minus U+002D a latin small letter a U+0061 e latin small letter e U+0065 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 o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074