rain gauge rain-fraught • rain glass · · · Info · Definitions · Synonyms · Characters · · rain gauge · · Text Common · · Latin · · Scripts 10 · · Length Definitions · · · (noun) gauge consisting of an instrument to measure the quantity of precipitation. Synonyms: rain gage, pluviometer, udometer. · · Noun Definition 1 Synonyms · · · rain · · Synonym 1 rainfall · · Synonym 2 rainwater · · Synonym 3 pelting · · Synonym 4 rain down · · Synonym 5 Characters · · space U+0020 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 n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075