1. gren - Verb
2. Gren - Proper noun
gren (third-person singular simple present grens, present participle grenning, simple past and past participle grenned)
Obsolete spelling of grin
Gren.
(law) Abbreviation of Grenada.
Gren.
Thanks to Taunya Gren for this great I'M BORED In The Wild reader pic. Source: Internet
The Ivan Gren is expected to join Russia’s Northern Fleet. Source: Internet