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
Pretreat other areas that are prone to odor, such as the armpits where deodorant and musty smells build up.
—Patricia Shannon, Southern Living, 2 Nov. 2024
Another surfer last December who was also surfing off an Indonesian island was speared in the armpit by a needle fish, and suffered a punctured lung but survived, the publication Surfer reported.
—Jeanine Santucci, USA TODAY, 24 Oct. 2024
Use the opposite hand to gently press your fingers in small circles across your entire breast area and armpit, applying various pressures, and gently squeeze the nipple to check for discharge.
—Dr. Jamin Brahmbhatt, CNN, 20 Oct. 2024
This one goes on clear, leaving no white cast on your skin or clothes, and the cooling roll-on deodorant feels excellent on sensitive armpits.
—Sarah Madaus, Allure, 4 Oct. 2024
See all Example Sentences for armpit 
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Patricia Shannon, Southern Living, 2 Nov. 2024
Another surfer last December who was also surfing off an Indonesian island was speared in the armpit by a needle fish, and suffered a punctured lung but survived, the publication Surfer reported.
—Jeanine Santucci, USA TODAY, 24 Oct. 2024
Use the opposite hand to gently press your fingers in small circles across your entire breast area and armpit, applying various pressures, and gently squeeze the nipple to check for discharge.
—Dr. Jamin Brahmbhatt, CNN, 20 Oct. 2024
This one goes on clear, leaving no white cast on your skin or clothes, and the cooling roll-on deodorant feels excellent on sensitive armpits.
—Sarah Madaus, Allure, 4 Oct. 2024
See all Example Sentences for armpit
Articles Related to armpit
Dictionary Entries Near armpit
Cite this Entry
“Armpit.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/armpit. Accessed 24 Nov. 2024.
Copy CitationKids Definition
armpit
noun
arm·pit
ˈärm-ˌpit 
: the hollow beneath the spot where the arm and shoulder join
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