Word Separator (・) in OS X Kotoeri Japanese Input

To separate hiragana, type a slash ('/') and then press enter.

e.g. 日本 = に・ほん

づ ("du" or "dzu") with OS X Kotoeri Japanese Input

To create the kana づ, type "du" rather than "dzu".

e.g. 小包 (こづつみ, parcel)