\ ˈchek-ˌin How to pronounce check-in (audio) \

Definition of check-in

 (Entry 1 of 2)

: an act or instance of checking in

check in

checked in; checking in; checks in

Definition of check in (Entry 2 of 2)

intransitive verb

1 : to register at a hotel
2 : to report one's presence or arrival check in at a convention
3 US : to find out or report the status of someone or something especially as part of a regular pattern of communication or monitoring She checks in with her boss/team every Friday. I'm just checking in to find out how your doctor's appointment went. Asking for feedback can definitely be scary, but it's good to check in and get some constructive criticism on how you're doing.— Nancy Valev often followed by on or with I'm just checking in with you to find out how your doctor's appointment went.All parents should have a system where they check in with their kids frequently.— James LehmanHe will be required to check in with a probation officer every week at the outset, and undergo drug and alcohol testing and complete psychological counseling.— Cory SchafferDuring the early afternoon, Mrs. Ruane … checked in on the patient who had returned from her procedure.— Pohla Smith"… Millions of Americans use social media every day to check in on friends and family, learn about current events, and share their experiences online. … "— Shayne Adamski"… But, Shirley, thank you so much. I'll check in with you again as the story unfolds, OK?"— Drew PinskyWe access our work email on our phones, catch up on messages during our commutes and even when we're out at lunch, check in on work before bed—some of us feel like we have to just to be good employees.— Alan Henry… suggests … setting up Remote Desktop so that you can check in on the systems from afar …— Andrew Cunningham

transitive verb

: to satisfy all requirements in returning check in the equipment after using

First Known Use of check-in


1927, in the meaning defined above


1918, in the meaning defined at intransitive sense 1

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Time Traveler for check-in

Time Traveler

The first known use of check-in was in 1918

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Cite this Entry

“Check-in.” Dictionary, Merriam-Webster, Accessed 20 Apr. 2021.

Style: MLA
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More Definitions for check-in



English Language Learners Definition of check-in

: the act or process of reporting that you have arrived at a hotel, an airport, etc. : the act or process of checking in also : the time when people are allowed to check in
: the place where people go when they arrive at a hotel, airport, etc.

More from Merriam-Webster on check-in

Britannica English: Translation of check-in for Arabic Speakers

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