dead letter

dead letter


: a letter that cannot be delivered or returned by the post office because of an incorrect address or other problem

: a law or agreement that has lost its force or authority

Full Definition of DEAD LETTER

:  something that has lost its force or authority without being formally abolished
:  a letter that is undeliverable and unreturnable by the post office

First Known Use of DEAD LETTER



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Previous Word in the Dictionary: dead–leaf butterfly
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