armpit

noun

arm·​pit ˈärm-ˌpit 

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

Ticks especially like to latch onto moist, warm areas of the body like the groin, armpits, the hairline, under the breasts and in the curves of the knees and arms. —Helen Carefoot, Flow Space, 27 May 2026

Royal buries her head in Kenda’s armpit. —Sean Gregory, Time, 26 May 2026

Fennell said she is frequently distracted by female characters adhering to modern grooming standards — like clean-shaven armpits — in period pieces like Jane Austen adaptations. —Wesley Stenzel, Entertainment Weekly, 23 May 2026

On the metabolic side, patients might develop insulin resistance, weight gain, difficulty with weight loss and dark velvety skin patches around the neck or armpits, as well as significantly elevated risk of prediabetes, type 2 diabetes and cardiovascular disease. —Adaira Landry, Forbes.com, 15 May 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1

Rhymes for armpit

• acquit
• admit
• backlit
• befit
• cockpit
• commit
• dalit
• dendrite
• emit
• illite
• misfit
• moonlit

Kids Definition

armpit

noun

arm·​pit ˈärm-ˌpit 

: the hollow beneath the spot where the arm and shoulder join

Medical Definition

armpit

noun

arm·​pit ˈärm-ˌpit 

: the hollow beneath the junction of the arm and shoulder : axilla