Meaning ofcheck inin English

Verb

1. to announce arrival at a location; record presence
   When you arrive at the hotel, please check in at the front desk.
2. to verify and record someone's information
   The staff will check in your passport and visa information.
3. to contact and update someone on one's situation
   After a few days of travel, she will check in with her family to let them know she's safe.
4. to return an item (book, code, etc.) to a repository
   You should check in the updated code to the repository before the deadline.
5. to visit and see someone's status
   The nurse will check in on the patient regularly to monitor their condition.