Gender Masculine Usage Japanese Scripts 二郎, etc.(Japanese Kanji) じろう(Japanese Hiragana) Pronounced Pron. /d͡ʑi.ɾo̞ː/ Meaning & History From Japanese 二 (ji) meaning "two" and 郎 (rō) meaning "son". This was traditionally a name given to the second son. Other combinations of kanji characters can also be possible.