thirty-thirty

noun
thir·​ty-thir·​ty | \ ˌthər-tē-ˈthər-tē How to pronounce thirty-thirty (audio) \

Definition of thirty-thirty

: a rifle that fires a .30 caliber cartridge having a 30 grain powder charge usually written .30–30

First Known Use of thirty-thirty

1929, in the meaning defined above

Learn More About thirty-thirty

Time Traveler for thirty-thirty

Time Traveler

The first known use of thirty-thirty was in 1929

See more words from the same year

Dictionary Entries Near thirty-thirty

thirty-third

thirty-thirty

thirty-three

See More Nearby Entries 

Statistics for thirty-thirty

Cite this Entry

“Thirty-thirty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thirty-thirty. Accessed 6 Oct. 2022.

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

WORD OF THE DAY

Test Your Vocabulary

The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

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