Submitted by György Chityil ... on Fri, 01/19/2018 - 18:05 Hierarchy: NounDescription: {{philately}} a letter or card with new stamp, posted on the day that the stamp was first issued.Ngram: first day coverNgram Text: first day coverSource: WiktionaryIssue: 0Wiktionary tag: philatelyNgram Count: 3