groundburst

noun

ground·​burst ˈgrau̇n(d)-ˌbərst How to pronounce groundburst (audio)
variants or ground burst
Synonyms of groundburstnext
: the detonation of a nuclear warhead at ground level

Word History

First Known Use

circa 1951, in the meaning defined above

Time Traveler
The first known use of groundburst was circa 1951

Dictionary Entries Near groundburst

ground burnut

groundburst

ground cable

See More Nearby Entries 

Cite this Entry

“Groundburst.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/groundburst. Accessed 15 Dec. 2024.

Copy Citation

Share

More from Merriam-Webster on groundburst

Thesaurus: All synonyms and antonyms for groundburst

Love words? Need even more definitions?

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

Popular in Grammar & Usage

See All

Using Bullet Points ( • )

Point of View: It's Personal

Plural and Possessive Names: A Guide

What's the difference between 'fascism' and 'socialism'?

More Commonly Misspelled Words
See All

Popular in Wordplay

See All

More Words with Remarkable Origins

8 Words for Lesser-Known Musical Instruments

Birds Say the Darndest Things

10 Scrabble Words Without Any Vowels

12 More Bird Names that Sound Like Insults (and Sometimes Are)
See All

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
confused man standing between two doors
One Word or Two? Take the Quiz! Some words just need a little space.