arm·​pit ˈärm-ˌpit How to pronounce armpit (audio)
: the hollow beneath the junction of the arm and shoulder
: the least desirable place : pit
77th Street Station … was the armpit of detective dutyJoseph Wambaugh

Examples of armpit in a Sentence

a city described as the armpit of America
Recent Examples on the Web The groin and armpits are especially effective spots for cooling. Amanda MacMillan, Health, 10 May 2024 These areas also can appear in the armpits and groin, and sometimes on the knees, elbows, and hands. Elizabeth Woolley, Verywell Health, 15 Apr. 2024 The third suspect was also seen on camera grabbing several jackets off the racks, stashing them under his armpits and draping them over his arm. Greg Wehner, Fox News, 5 Mar. 2024 Black women, in particular, are at a higher risk of developing HS, which carries a lot of shame and stigma due to its appearance and the location of the nodules, which can show up on your armpits, genitals, butt, or under your breasts—anywhere skin rubs on skin. Julia Craven, SELF, 29 Mar. 2024 In most cases, there is a painful swelling of the lymph node in the groin, armpit or neck areas. Gabe Hauari, USA TODAY, 12 Mar. 2024 Two years later, in 2017, after experiencing extreme fatigue and additional lumps in her armpit area, Reece was diagnosed with stage IV hormone receptor-positive, HER2-positive metastatic breast cancer at age 39. Pamela Appea, Parents, 9 Mar. 2024 Many detected it themselves, either through self-examination (25%) or by accident (18%), for example, when applying deodorant or shaving their armpits. Kylie Gilbert, Glamour, 22 Mar. 2024 What began with skin quickly expanded into much more, including organic armpit wash, eczema wash, and oral care products. Nafeesah Allen, Health, 11 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'armpit.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

14th century, in the meaning defined at sense 1

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

Dictionary Entries Near armpit

Cite this Entry

“Armpit.” Dictionary, Merriam-Webster, Accessed 18 May. 2024.

Kids Definition


arm·​pit ˈärm-ˌpit How to pronounce armpit (audio)
: the hollow beneath the spot where the arm and shoulder join

Medical Definition


arm·​pit ˈärm-ˌpit How to pronounce armpit (audio)
: the hollow beneath the junction of the arm and shoulder : axilla
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