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/ˈpoʊstˌkɑɹd/ · noun
(postal) A rectangular piece of thick paper or thin cardboard, typically used for sending messages by mail without the need for an envelope..
to postcard one's friends
to postcard one's news
Use post card when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Post card means (postal) A rectangular piece of thick paper or thin cardboard, typically used for sending messages by mail without the need for an envelope..
Common synonyms include postal card, mailing-card.
The opposite depends on the specific sense.
to postcard one's friends
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