postcards
n. countable A2 Elementary US //ˈpoʊˌskɑɹdz// UK //pˈəʊstkɑːdz// post·cards
n. thick cards with a picture on one side that you send through the mail without an envelope.
n. rectangular cards intended for writing and mailing without an envelope, typically featuring a photograph or illustration on one side.
I always send postcards to my family when I travel.
The gift shop sells a wide variety of postcards featuring local landmarks and scenic views of the coast.
While digital messaging has largely replaced traditional correspondence, many travelers still enjoy the tactile ritual of selecting and mailing physical postcards to friends back home.
Usage
Often used with the verbs 'send', 'write', or 'mail'.