What does “check in” mean?
check in means to tell staff you have arrived, or to complete the first step before a stay, flight, or appointment starts. It is common at hotels, airports, clinics, interviews, and events, and for flights it can also be online.
When people say it
- At a hotel: "I'd like to check in, please."
- For a flight, at the airport or online: "I checked in online last night."
- At a clinic, embassy, or interview: "Where do I check in for my visa interview?"
- With a person after it: "Who do I check in with?"
Tone: It is neutral and polite, and very natural at a front desk or reception.
In 8 of Lin's scenes
Real lines from the scenes. Open one to watch it and say it yourself.
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Line by line
Other ways to say it
Common for offices, websites, events, or visitor logs; often simpler than check in.
More formal; common for events, classes, or forms.
Use this when you mean report to a person: "Check in with security first."
Quick answers
Is "check in" the same as "check into"?
Not exactly. "Check in" is the general action of arriving and doing the first steps. "Check into a hotel" is more specific to entering that hotel as a guest.
Can I use "check in" for a hospital, interview, or visa appointment?
Yes. It is very common in any place where you arrive and report to a desk or reception before your appointment starts.