dead letter (English, noun)
expansion: dead letter (plural dead letters)
Senses:
glosses: An item of mail that cannot be delivered to its intended recipient; after some time it is returned to the sender, or destroyed.
glosses: A law or other measure that is no longer enforced.
glosses: Anything that has lost its authority or influence despite still being in existence or formally in force.
tags: broadly
Forms:
form: dead letters
tags: plural