check in

check someone in

to record the arrival of someone. Ask the guard to check you in when you get there. Tell the guard to check in the visitors as they arrive.

See also: check

check something in 

1. to record that someone has returned something. I asked the librarian to check the book in for me. Did the librarian check in the book?

2. to take something to a place, return it, and make sure that its return has been recorded. I checked the book in on time. Did you really check in the book on time?

3. to examine a shipment or an order received and make certain that everything ordered was received. I checked the order in and sent a report to the manager. Tim checked in the order from the supplier to make sure that everything was there.

See also: check

check in (to something)

1. to sign oneself into a place to stay, such as a hotel, hospital, motel, etc. She checked into a private hospital for some kind of treatment. They checked into the first motel they came to on the highway.

2. Go to look into something.

See also: check

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check in

to give your name when you arrive at a place With all these security measures, you have to check in at least two hours hour before your flight.

Usage notes: usually said about giving your name at a place you will be staying, such as a hotel, or before traveling on an aircraft

See also: check

check in (with somebody)

to communicate with someone, esp. regularly When traveling, I am supposed to check in with my boss at least once a day.

See also: check