crab grass crabgrass • crab harrow · · · Info · Definitions · Synonyms · Characters · · crab grass · · Text Common · · Latin · · Scripts 10 · · Length 2 · · Syllables Definitions · · · (noun) grasses with creeping stems that root freely; a pest in lawns. Synonyms: crabgrass, crab grass, finger grass. · · Noun Definition 1 Synonyms · · · crabgrass · · Synonym 1 finger grass · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 g latin small letter g U+0067 r latin small letter r U+0072 s latin small letter s U+0073