check-in. A procedure whereby a hotel guest or airline passenger is registered as having arrived. Check-in may require the presentation of payment, reservations, or other documentation or identification.
To find the abbreviation, acronym, or term you’re looking for, use the Search box (below) or click on any letter (above).
Become A Home-Based Travel Agent
Join the home-based travel revolution. A complete home study course with a no-risk guarantee. Click here.