check in

phrasal verb·3 senses·particle in

Meanings

1

Register at a hotel, airport or event

Why “in”? You reach a place and become present there. The train gets in, you check in, or the news comes in.

We checked in at the front desk.
We registered our arrival at the front desk.
They checked in at the hotel.
They registered their arrival at the hotel.
We checked in for the conference just after noon.
We registered for the conference just after noon.
2

Hand over luggage to be loaded onto a plane

Why “in”? Walls close around something. What is in is held inside.

He checked in two suitcases.
He handed in two suitcases for the flight.
Maya checked in her backpack.
Maya handed over her backpack to be loaded.
3

Briefly contact someone to update them

I'll check in with you tomorrow.
I'll briefly contact you tomorrow with an update.
I'll check in with you after the interview.
I'll briefly contact you with an update after the interview.

Don't confuse with

check incheck out

Check in means register at a hotel, airport or event. Check out means leave a hotel after paying.

Test yourself

We checked in at the front desk. What does it mean?

Nearby in the meaning map

Sink In connects verbs by particle pattern, contrast pairs, and shared base verbs.

Tell it apart

Side-by-side comparisons with the verbs learners most often confuse for “check in”.

Practice “check in” in Sink In

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