air stack


Definition of air stack

: planes circling at different assigned altitudes above an airport while waiting their turn to land

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 air stack

circa 1957, in the meaning defined above

Keep scrolling for more

Learn More about air stack

Time Traveler for air stack

Time Traveler

The first known use of air stack was circa 1957

See more words from the same year

Statistics for air stack

Cite this Entry

“Air stack.” Dictionary, Merriam-Webster, Accessed 17 Jan. 2021.

Comments on air stack

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


Test Your Vocabulary

Words of Snow and Ice Quiz

  • image1037863653
  • Which of the following refers to thin, bending ice, or to the act of running over such ice?
True or False

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


Anagram puzzles meet word search.

Love words? Need even more definitions?

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