Save Gender Masculine Usage Japanese Scripts 大志郎, 大四郎, etc.(Japanese Kanji) Pronounced Pron. DAH-EE-SHEE-RO [key] Meaning & History From 大 (dai) meaning "big, large, great", 志 (shi) meaning "aspiration, determination", and 郎 (ro) meaning "son". Other kanji combinations can spell this name.