Definition of back in

1 in poker : to bet after having passed at the first opportunity
2 in bridge : to overcall or double or to reopen the bidding after having passed in the first round

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of back in

1947, in the meaning defined above

Learn More About back in

Time Traveler for back in

Time Traveler

The first known use of back in was in 1947

See more words from the same year

Dictionary Entries Near back in


back in

back in action

See More Nearby Entries 

Statistics for back in

Cite this Entry

“Back in.” Dictionary, Merriam-Webster, Accessed 28 Jan. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!