from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An unclaimed or undelivered letter that after a period of time is destroyed or returned to the sender by the postal service.
- n. A law, directive, or factor still formally in effect but no longer valid or enforced.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An item of mail that cannot be delivered to its intended recipient; after some time it is returned to the sender, or destroyed
- n. A law that is no longer enforced
from the GNU version of the Collaborative International Dictionary of English
- adj. That which has lost its force or authority; as, the law has become a dead letter.
- n. etc. See under Dead, Drop, etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. mail that can neither be delivered nor returned
- n. the state of something that has outlived its relevance
Sorry, no etymologies found.