supergrass supergrant • supergratification · · · Info · Definitions · Synonyms · Characters · · supergrass · · Text Latin · · Script 10 · · Length 3 · · Syllables Definitions · · · (noun) a police informer who implicates many people. Synonyms: grass. · · Noun Definition 1 Synonyms · · · grass · · Synonym 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075