Check-in Definition

checkin, check-ins
verb

To announce or record one's arrival at a hotel, airport etc.

Wiktionary
To contact another person in order to keep the other person informed of one's situation.
Wiktionary
To return (a book to a library, source code to a repository, etc.).
Wiktionary
Synonyms:
Antonyms:
noun

The act of checking in at a hotel, airport etc.

Wiktionary

Other Word Forms of Check-in

Noun

Singular:
check-in
Plural:
check-ins

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