R star R-shaped • rub-a-dub · · · Info · Synonyms · Characters · · R star · · Text Common · · Latin · · Scripts 6 · · Length Synonyms · · · roentgen · · Synonym 1 r · · Synonym 2 gas constant · · Synonym 3 universal gas constant · · Synonym 4 radius · · Synonym 5 Characters · · space U+0020 R latin capital letter r U+0052 a latin small letter a U+0061 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074