underarm

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underarm

  • /ˈʌndɚˌɑɹm/ US

Where it comes from

From under- + arm. The armpit sense is not old, historically speaking (1920s), and it is believed to have arisen as a euphemism in advertising.

noun underarms

  1. attributive, often The armpit. underarm deodorant
  2. Old-fashioned and now outlawed style of bowling in which the arm is not swung over the shoulder.

adjective

  1. not comparable For use under the arm. A 1997 study found that about 104 million American women were using underarm deodorant products.

verb underarms · underarming · underarmed

  1. transitive To supply with insufficient weaponry.

Translations

Every language

noun armpit

Italianoascella
Ελληνικάμασχάλη mascháli
Русскийподмышка podmýška

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Cite this
MLA

"underarm." Wiktionary, via Micwyn, micwyn.com/word/underarm. Accessed 6 Nov. 2026.

APA

underarm. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/underarm

Chicago

"underarm." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/underarm.

BibTeX
@misc{underarm_2026,
  title = {underarm},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/underarm},
  urldate = {2026-11-06}
}