叔叔 Traditional form: 叔叔 Pinyin (reading): shūshu Definitions: father's younger brother uncle Taiwan pr. (shúshu) CL:個/个 (gè) Characters: 叔 - uncle; father's younger brother 叔 - uncle; father's younger brother Traditional characters: 叔 - uncle; father's younger brother 叔 - uncle; father's younger brother