leatherneck leathern • Leatheroid · · · Info · Definitions · Characters · · leatherneck · · Text Latin · · Script 11 · · Length Definitions · · · (noun) a member of the United States Marine Corps. Synonyms: Marine, devil dog, shipboard soldier. · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 k latin small letter k U+006B l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074