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check in

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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.

See also main entry: check

hostile architecture

the design of buildings or public spaces in a way which discourages people from touching, climbing or sitting on them …

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boots on the ground

a situation in which a country's armed forces are physically present in an area of conflict …

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