Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: dead letter  ded le-tu(r)
  1. The state of something that has outlived its relevance
    - non-issue
     
  2. Mail that can neither be delivered nor returned
    - dead mail

Derived forms: dead letters

Type of: letter, missive, state

Encyclopedia: Dead letter