\ ˈji-gə How to pronounce giga- (audio) , ˈgi- How to pronounce giga- (audio) \

Definition of giga-

: billion (109) gigahertz gigawatt

History and Etymology for giga-

International Scientific Vocabulary, from Greek gigas giant

Keep scrolling for more

Learn More about giga-

Statistics for giga-

Cite this Entry

“Giga-.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/giga-. Accessed 15 May. 2021.

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

More from Merriam-Webster on giga-

Britannica.com: Encyclopedia article about giga-

Comments on giga-

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

WORD OF THE DAY

Test Your Vocabulary

Words Used by Nabokov Quiz

  • image1676440788
  • Choose the best definition or synonym for the word in bold: "There are some eructations that sound like cheers—at least, mine did." Lolita
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

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!