ichidan verb, transitive verb
get used to calling (someone by a certain name)
Describes the process of becoming accustomed to addressing someone by a particular name or title, often after a change.
新しい上司を「部長」と呼び慣れるまで時間がかかった。
It took time to get used to calling the new boss 'Department Manager'.
彼女のあだ
It took a week to get used to calling her by her nickname.