WordReference Random House Unabridged Dictionary of American English © 2024gen′eral deliv′ery, - a postal service that delivers mail to a specific post office where it is held for pickup by the addressee.
- the postal department that handles such mail.
Collins Concise English Dictionary © HarperCollins Publishers::
general delivery n US Canadian - an address on mail indicating that it should be kept at a specified post office until collected by the addressee
- the mail-delivery service or post-office department that handles mail having this address
Also called (not in the US or Canada): poste restante