pen pal

US /ˈpen pæl/
UK /ˈpen pæl/
"pen pal" picture
1.

ペンパル, 文通相手

a person with whom one exchanges letters, especially regularly, but who is not a close friend

:
I've had a pen pal in Japan for five years.
私は5年間、日本にペンパルがいます。
She enjoys writing to her pen pal about her daily life.
彼女はペンパルに日常生活について書くのを楽しんでいる。