[duhb-uh l-boo k]
- to overbook by accepting more than one reservation for the same hotel room, airplane seat, etc.
- to make reservations for (more than one hotel accommodation, seat on a plane, etc.) so as to be certain of obtaining at least one of them.
- to make double reservations for passenger space, a hotel room, etc.
Origin of double-book
First recorded in 1965–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018