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Use "postcards" in a sentence
"Even at a reduced bulk rate, the cost of printing and mailing the just advance letters and follow-up reminder postcards is about $85 million, according to the bureau, a cost separate from the $338 million communications budget."
"Your response to the mention of electronic postcards is similar to mine when I receive paper postcards."
"Others depict the formative era of Wall Street and early "I Love New York" postcards from the 1970s."