check in
phrasal verbcheck in (at…)
- to go to a desk in a hotel, an airport, etc. and tell an official there that you have arrived
- Please check in at least an hour before departure.
- We've checked in at the hotel.
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check something in
- to leave bags or cases with an official to be put on a plane or train
- We checked in our luggage and went through to the departure lounge.