rock island rock hyrax • rock kangaroo · · · Info · Definitions · Characters · · rock island · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) a town in northwest Illinois on the Mississippi River; site of a Union prison during the American Civil War. Synonyms: Rock Island. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 i latin small letter i U+0069 k latin small letter k U+006B l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073