watermelon watermaster • watermonger · · · Info · Definitions · Synonyms · Characters · · watermelon · · Text Latin · · Script 10 · · Length Definitions · · · (noun) an African melon. Synonyms: watermelon vine, Citrullus vulgaris. · · Noun Definition 1 (noun) large oblong or roundish melon with a hard green rind and sweet watery red or occasionally yellowish pulp. · · Noun Definition 2 Synonyms · · · watermelon vine · · Synonym 1 citrullus vulgaris · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 w latin small letter w U+0077