American English

Definition of check-in noun from the Oxford Advanced American Dictionary



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  1. 1[countable, uncountable] the place where you go first when you arrive at an airport, hotel, or hospital, to show your ticket, get your room key, etc. The airline apologizes for long delays at check-ins today. Aim to arrive at check-in at least two hours before departure.
  2. 2[uncountable] the act or process of arriving and registering at an airport, hotel, or hospital Do you know your check-in time? the check-in counter/desk
See the Oxford Advanced Learner's Dictionary entry: check-in