0 a card, often with a photograph or picture on one side, that can be sent without an envelope -- 明信片
a saucy postcard
The local shop has a good stock of postcards and guidebooks.
I must write a few postcards while we're on holiday.
Families were recruited through postcards sent to several local neighborhoods, flyers, booths at community functions, and referrals from other participants.
They sent him countless letters and postcards, some of which called him a ' living saviour ' or celebrated his ' exalted and godlike benevolence ' (p. 229).
Despite the fact that royal postcards were small, mass-produced items with rather impersonal textual messages, they were ver y useful and effective public-relations tools.
