Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

check in

verb

Definition of check in

  1. intransitive verb
  2. 1 :  to register at a hotel

  3. 2 :  to report one's presence or arrival <check in at a convention>

  4. transitive verb
  5. :  to satisfy all requirements in returning <check in the equipment after using>



1918

First Known Use of check in

1918



Seen and Heard

What made you want to look up check in? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 13, 2016

a trying or distressing experience

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

16.96 pounds 100 pounds 196.5 pounds 2.2 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ