rain cloud rain check • rain course · · · Info · Definitions · Synonyms · Characters · · rain cloud · · Text Common · · Latin · · Scripts 10 · · Length Definitions · · · (noun) a dark grey cloud bearing rain. Synonyms: nimbus, nimbus cloud. · · 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 c latin small letter c U+0063 d latin small letter d U+0064 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 r latin small letter r U+0072 u latin small letter u U+0075