pen pal

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

amigo por correspondencia, amiga por correspondencia

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.
He tenido un amigo por correspondencia en Japón durante cinco años.
She enjoys writing to her pen pal about her daily life.
Le gusta escribir a su amigo por correspondencia sobre su vida diaria.