ack-ack

noun
\ ˈak-ˌak How to pronounce ack-ack (audio) \

Definition of ack-ack

: an antiaircraft gun also : antiaircraft fire

First Known Use of ack-ack

1917, in the meaning defined above

History and Etymology for ack-ack

British signalmen's telephone pronunciation of AA, abbreviation of antiaircraft entry 1

Keep scrolling for more

Learn More about ack-ack

Time Traveler for ack-ack

Time Traveler

The first known use of ack-ack was in 1917

See more words from the same year

Statistics for ack-ack

Cite this Entry

“Ack-ack.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ack-ack. Accessed 24 Nov. 2020.

Comments on ack-ack

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

WORD OF THE DAY

Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

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

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!