noun
PEN International
Refers to the worldwide association of writers, originally an acronym for Poets, Playwrights, Editors, Essayists and Novelists. In Japanese, it is treated as a proper noun and often used in contexts related to literary freedom and international writers' gatherings.
日本ペンクラブは国際ＰＥＮの一員です。
The Japan PEN Club is a member of PEN International.