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Thesaurus: dead letter
the state of something that has outlived its relevance
Related headwords
delivereddefinitionmaildefinitionneitherdefinitionoutliveddefinitionrelevancedefinitionreturneddefinitionsomethingdefinitionstatedefinitiondead bodyfamilydead centerfamilydead centrefamilydead dropfamilydead duckfamilydead endfamilydead handfamilydead hand of the pastfamilydead heatfamilydead languagefamilydead loadfamilydead logfamilydead logsfamilydead mailfamilydead man's brakefamilydead marchfamilydead metaphorfamilydead nettlefamilydead on targetfamilydead personfamily