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
This is also a time when the glands in the armpits start to produce body odor.
—Cordelia Nwankwo, Verywell Health, 31 Mar. 2025
Snuggled under the armpits of many an A-Lister was the Coach Chain Tabby Shoulder Bag, a roomier version of the classic Tabby that provides instant flair via its silver or gold chain hardware.
—Stacia Datskovska, WWD, 12 Feb. 2025
One of my armpits took longer to heal than the other one.
—Meirav Devash, Allure, 17 Jan. 2025
Also, focus on elongating your spine and stretching along your armpits.
—Amber Sayer, Outside Online, 13 Feb. 2025
See All Example Sentences for armpit
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Cordelia Nwankwo, Verywell Health, 31 Mar. 2025
Snuggled under the armpits of many an A-Lister was the Coach Chain Tabby Shoulder Bag, a roomier version of the classic Tabby that provides instant flair via its silver or gold chain hardware.
—Stacia Datskovska, WWD, 12 Feb. 2025
One of my armpits took longer to heal than the other one.
—Meirav Devash, Allure, 17 Jan. 2025
Also, focus on elongating your spine and stretching along your armpits.
—Amber Sayer, Outside Online, 13 Feb. 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 29 Apr. 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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