check in

Fetched 2026-10-26 (cache).

Synonyms: check on, check-in, chuck in, checks in, checkin, check up, checkrein, clock in, check bit, checks on, check rein

Antonyms: check on, check-in, chuck in, checks in, checkin, check up, checkrein, clock in, check bit, checks on, check rein

Related words from Datamuse; suggestions, not definitions.

Verb

1. To [[announce]] or [[record]] one's own [[arrival]] at a [[hotel]], [[airport]] etc.
2. To [[verify]] a person's information and record their arrival, such as at a hotel, airport, etc.
3. To [[contact]] another person in order to keep the other person [[inform]]ed of one's situation.
4. {{lb|en|transitive}} To return (a book to a library, [[source code]] to a [[repository]], etc.).
5. To [[visit]] in order to see how someone is doing.
6. {{lb|en|intransitive|prison slang}} To enter [[solitary confinement]] at one's own [[request]] for [[protection]] from other prisoners.
7. {{lb|en|transitive|prison slang}} To send somebody to [[solitary confinement]]; to make somebody be admitted to solitary confinement.
8. {{lb|en|software}} To [[integrate]] new [[revision]]s into the public or [[master]] [[version]] of a [[file]] in a [[version control]] system.
9. {{lb|en|intransitive|Netherlands|NNSE}} to [[tap on]], to [[touch in]], to [[tap in]] {{gloss|to use a smartcard to start a public transport journey}}

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.