Penfriend is a term used to refer to someone with whom you exchange letters or emails as a form of friendly correspondence. However, there are a few synonyms that can be used in place of penfriend, to add more variety to your vocabulary. Some of the alternatives are "pen pal," "correspondent," "epistolary friend," "letter friend," or simply "writing partner." Regardless of the term used, the concept remains the same, as these are all people with whom one interacts through letter writing or electronic means, fostering lasting friendships and meaningful connections with those from different backgrounds and cultures.