— phrasal verb with check uk /tʃek/ us /tʃek/ verb
- You'll be unpopular with the airport staff if you don't check in on time.
- There are a couple of passengers who still haven't checked in, so we may be able to get you on the flight.
- I was just about to check in when I realized I'd left my passport at home.
- We had to queue for ages to get checked in for the flight.
- I was sure I recognized the guy checking in in front of us, and the airline staff seemed excited to see him.