伯はく叔しゅくはくしゅくMeanings1nounbrothers; one's father's brothersRare, formal term referring specifically to one's father's brothers. Not used in everyday conversation; modern Japanese would use おじ or 伯父/叔父.古こ文ぶん書しょでは「伯はく叔しゅく」が父ちちの兄きょう弟だいを指さすことがある。In old documents, 伯叔 can refer to one's father's brothers.