WordReference Random House Unabridged Dictionary of American English © 2025
overnight′ tel′egram,
- Telecommunicationsa type of domestic telegram sent at a reduced rate with a minimum charge for 10 words or less and accepted until midnight for delivery the following day.
- Telecommunicationsthe service offering such a telegram. Abbr.: OT Cf. fast telegram, personal-opinion telegram. Formerly, night letter.
- 1950–55
'overnight telegram' also found in these entries (note: many are not synonyms or translations):