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

When carrying your machete, cover it with the sheath and carry with the tip pointing down or tuck it under your armpit, blade facing down, with the handle in the front. —Rachel Ahrnsen, Better Homes & Gardens, 17 May 2024

There’s a valid reason some people call Buffalo the armpit of America, and on a semiannual basis we’re provided images of town folk shoveling the stadium out before, during, or after a snowstorm, which from time to time complicates the NFL schedule. —Omar Kelly, Miami Herald, 15 May 2024

Word History

First Known Use

14th century, in the meaning defined at sense 1

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