Meaning of check-in in English

Noun

US /ʧɛk-ɪn/ UK /ʧɛk-ɪn/

1. the action of telling the person at the desk of an airport or a hotel where you go that you have arrived

Check-in starts from 17:00.

Meaning of check in in English

Phrasal verbs

1. tell the person at the desk of an airport or a hotel where you go that you have arrived

You can check in after[from] 17:00. ー Check-in starts from 17:00.