Search Dictionary
Definition of undershirt

undershirt

/ˈʌn.dɚˌʃɝːt/
un · der · shirt
Plural:undershirts
JUMP TO:

undershirt Lexical Profile

undershirt Game Scores & Validity

• noun

1

North American A collarless and typically sleeveless or short-sleeved undergarment worn beneath a shirt to absorb sweat, protect outer clothing from body oils, or provide additional warmth.

Example

"He wore a crisp white dress shirt over his undershirt to ensure a neat appearance during the job interview."

Synonyms
View all synonyms for undershirt
Antonyms
View all antonyms for undershirt

Word Nuance & Usage

In American English, an 'undershirt' is typically worn beneath a primary shirt for warmth or sweat absorption, whereas the same garment is often called a 'vest' in British English and a 'singlet' in Australian English.

• Nearby Words

uncle
underclothes
underpants
undershirt
underwear
ungulate
unicornfish

Word Origin & Etymology

First recorded in English in the late 19th century, formed by combining the prefix 'under-' (meaning beneath) and the noun 'shirt', indicating its intended function as a foundational layer of clothing.

Cite this Entry

Wordmom. (2026). Definition of Undershirt. In Wordmom Dictionary. Retrieved Oct 12, 2026, from https://wordmom.com/dictionary/undershirt
Wordmom is your complete guide to the English language. Whether you're looking up a definition, searching for the perfect synonym, or unscrambling letters for a word game, our comprehensive suite of tools is designed to help you find the right word, every time.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE®, Words With Friends®, Wordle®, and related game titles or tournament codes are registered trademarks of their respective owners (including Hasbro, Mattel, Zynga, The New York Times, NASPA, and WESPA). Wordmom is an independent reference utility for educational and entertainment purposes, not affiliated with, sponsored, or endorsed by these entities. All game names are referenced strictly under nominative fair use for compatibility.