On OS X 10.11 El Capitan, I am trying to add a word to the Kotoeri lookup dictionary. It is a name that does not come up when you type the Hiragana. The way to do it pre-10.10 no longer works. How can I add the word?
Edit and use your user dictionaries (For OS X 10.11 El Capitan (and 10.10?))
While using a Japanese input mode, choose Edit Text Substitutions from the Input menu in the menu bar.
In the Text pane of Keyboard preferences, click the Add button .
In the Replace field, type the hiragana reading of the word (up to 32 characters).
- If you add an adjective, enter the reading in its dictionary form. The ending must be 〜い (~i). For example, あたらしい (atarashii) or たかい (takai).
- If you add an adverb, don’t include inflective endings, such as 〜な (-na) or 〜だ (-da).
Click the With column, then type the replacement word (up to 64 characters).
See the question mentioned as duplicate for methods for older versions of OS X.