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
Joseph WambaughExamples of armpit in a Sentence
a city described as the armpit of America
Recent Examples on the Web
Here, the afternoon heat meets armpits in the face, bodies jousting for balance, the smell of contest and blank slates (and, yes, a 35C/96F heatwave wafting).
—Megan Feringa, New York Times, 3 July 2025
Place cold, wet cloths or ice packs on the neck, armpits and groin, and soak clothing with cold water.
—Katia Hetter, CNN Money, 19 June 2025
While having smelly armpits from time to time is a common occurrence, there are some underlying conditions or other factors that can contribute to the odor.1
What Causes Your Armpits To Smell?
—Sherri Gordon, Health, 18 June 2025
It’s thoughtfully designed, with a flattering side slit and patches in the armpit area to ensure modest coverage.
—Genevieve Cepeda, Travel + Leisure, 17 June 2025
See All Example Sentences for armpit
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Megan Feringa, New York Times, 3 July 2025
Place cold, wet cloths or ice packs on the neck, armpits and groin, and soak clothing with cold water.
—Katia Hetter, CNN Money, 19 June 2025
While having smelly armpits from time to time is a common occurrence, there are some underlying conditions or other factors that can contribute to the odor.1
What Causes Your Armpits To Smell?
—Sherri Gordon, Health, 18 June 2025
It’s thoughtfully designed, with a flattering side slit and patches in the armpit area to ensure modest coverage.
—Genevieve Cepeda, Travel + Leisure, 17 June 2025
See All Example Sentences for armpit
Cite this Entry
“Armpit.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/armpit. Accessed 21 Jul. 2025.
Copy CitationKids Definition
armpit
noun
arm·pit
ˈärm-ˌpit 
: the hollow beneath the spot where the arm and shoulder join
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