rocket fuel rocket firing • rocket harpoon · · · Info · Definitions · Synonyms · Characters · · rocket fuel · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (noun) an explosive charge that propels a rocket. Synonyms: rocket fuel, rocket propellant, rocket propellent. · · Noun Definition 1 Synonyms · · · rocket propellant · · Synonym 1 rocket propellent · · Synonym 2 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 f latin small letter f U+0066 k latin small letter k U+006B l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075