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 But some combination of luck, fate, carelessness and the vagaries of ballistic trajectories caused the bullet to pass through his chest and out his armpit, completely missing his vital organs. Nick Turse, New York Times, "How One of the Most Stable Nations in West Africa Descended Into Mayhem," 15 Oct. 2020 Unfortunately, he's stood far enough away from the camera that those new tattoos are mostly indiscernible, except for a branch that extends all the way from his left hip and upward toward his armpit. Nicola Dall'asen, Allure, "Chris Evans Has Been Secretly Covered in Tattoos This Whole Time," 7 Oct. 2020 For instance, the upper outer part of your breast (the part that's closest to your armpit) tends to be one of the densest areas, says Gralow. Jenny Mccoy, Glamour, "What a Lump in Your Breast Could Mean (Besides Cancer)," 1 Oct. 2020 In the cub’s first few days, Mei Xiang kept it mostly hidden, tucked beneath her armpit or between her forearms. Michael Brown-palsgrove, Laurie Thompson, Smithsonian Magazine, "Top 10 Giant Panda Cub Cam Moments," 21 Aug. 2020 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

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.

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First Known Use of armpit

14th century, in the meaning defined at sense 1

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Time Traveler for armpit

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

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Last Updated

24 Oct 2020

Cite this Entry

“Armpit.” Dictionary, Merriam-Webster, Accessed 31 Oct. 2020.

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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

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