arm·​pit | \ ˈärm-ˌpit How to pronounce armpit (audio) \

Definition of armpit

1 : the hollow beneath the junction of the arm and shoulder
2 : the least desirable place : pit 77th Street Station … was the armpit of detective duty— Joseph Wambaugh

Examples of armpit in a Sentence

a city described as the armpit of America
Recent Examples on the Web These can typically be used in the mouth, armpit, or rectum (but each device should be limited to one type of use to prevent cross-contamination). Jessica Bennett, Better Homes & Gardens, "Yes, You Need to Clean Your Thermometer After Each Use—Here's How to Do It Safely," 28 Aug. 2020 Thoracic outlet syndrome is a compression of the nerves or blood vessels between the neck and the armpit that can lead to a variety of symptoms, including pain and numbness. Nick Piecoro, The Arizona Republic, "Merrill Kelly’s season likely over for Diamondbacks after blood clot procedure," 27 Aug. 2020 It's transmitted by fleas that live on rodents and symptoms, which usually appear within one to seven days after infection, include painful, swollen lymph nodes, called bubos, in the groin, armpit or neck areas as well as fever, chills and coughing. Susan Scutti, CNN, "Why is the plague still a thing in 2020? And are you at risk of getting it?," 19 Aug. 2020 Put the ball under the armpit at the top of your ribs, lean into the wall, and gently rock back and forth. Kelly Dinardo New York Times, Star Tribune, "A breathtaking workout to improve your breathing," 21 Aug. 2020 In 2019, singer Halsey showed off her armpit hair on the cover of Rolling Stone. Maggie O'neill,, "Madonna’s Daughter Lourdes Leon Rocks Armpit Hair at Her Mother’s 62nd Birthday Party," 20 Aug. 2020 The black trimming needs to go, as do the strange armpit stripes. Jeremy Cluff, The Arizona Republic, "Arizona Cardinals ranked last in NFL uniform power rankings for 2020 season," 6 Aug. 2020 The bullet entered near his right armpit, exiting through his back, charges show. Meredith Colias-pete,, "Merrillville man charged after shooting driver with assault-style rifle, records show," 5 Aug. 2020 The dog pulled away from the woman, jumped and bit his chest and armpit. Bob Sandrick, cleveland, "Loose dog bites man in chest; man in Buick arrested on warrant: Berea police blotter," 30 July 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'armpit.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of armpit

14th century, in the meaning defined at sense 1

Keep scrolling for more

Learn More about armpit

Time Traveler for armpit

Time Traveler

The first known use of armpit was in the 14th century

See more words from the same century

Statistics for armpit

Last Updated

6 Sep 2020

Cite this Entry

“Armpit.” Dictionary, Merriam-Webster, Accessed 23 Sep. 2020.

Keep scrolling for more

More Definitions for armpit


How to pronounce armpit (audio)

English Language Learners Definition of armpit

: the hollow area on a person's body beneath the place where the arm and the shoulder meet
US, informal : the worst area in a place


arm·​pit | \ ˈärm-ˌpit How to pronounce armpit (audio) \

Kids Definition of armpit

: the hollow under a person's arm where the arm joins the shoulder


arm·​pit | \ ˈärm-ˌpit How to pronounce armpit (audio) \

Medical Definition of armpit

: the hollow beneath the junction of the arm and shoulder : axilla

Keep scrolling for more

Comments on armpit

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


Test Your Vocabulary

Homophone Quiz

  • three bears two of them look like theyre whispering to a third bear who looks chuffed to be the center of attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

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

Love words? Need even more definitions?

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