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check in - definition and synonyms

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phrasal verb
Word Forms
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present tense
I/you/we/theycheck in
he/she/itchecks in
present participlechecking in
past tensechecked in
past participlechecked in
  1. 2
    [intransitive] tourism to arrive at an airport and show your ticket to an official
    You must check in at least one hour before your flight.
  2. 3
    [transitive] tourism same as check1 (sense 5)
    Roger checked in his suitcase.
  3. 4
    [transitive]check someone in to deal with someone when they arrive at a hotel or at an airport from which they have arranged to fly
    The receptionist checked us in.
See also main entry: check

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