group a group • group ab · · · Info · Definitions · Characters · · group a · · Text Common · · Latin · · Scripts 7 · · Length 2 · · Syllables Definitions · · · (noun) the blood group whose red cells carry the A antigen. Synonyms: A, type A, group A. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 g latin small letter g U+0067 o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 u latin small letter u U+0075