A singlet is a sleeveless sports shirt worn by athletes and boxers.
[British]
...a grubby running singlet.
2. countable noun
A singlet is a plain sleeveless piece of underwear which is worn on the upper half of the body.
[British]
He was wearing a blue silk singlet and boxer shorts.
singlet in British English
(ˈsɪŋɡlɪt)
noun
1. mainly British and Australian
a man's sleeveless undergarment covering the body from the shoulders to the hips
2. Australian
a similar sleeveless garment worn as outerwear
Also called (in Britain): vest
3. mainly British
a garment worn with shorts by athletes, boxers, etc
4. New Zealand
a black woollen outer garment worn by bushmen
5. physics
a multiplet that has only one member
6. chemistry
a chemical bond consisting of one electron
Word origin
C18: from single, on the model of doublet
singlet in American English
(ˈsɪŋglɪt)
noun
1. British
a man's undershirt, esp. a sleeveless one
2. Austral and New Zealand
a short-sleeved or sleeveless knit top, as a T-shirt or tank top
3.
any single thing that usually exists in combination; specif., an atom that is freedfrom combination by being raised to a higher energy level, as an atom of oxygen in a cell excited by a laser or sunlight, that becomes destructive
Word origin
< single, modeled on doublet
Examples of 'singlet' in a sentence
singlet
Buks slapped his braces against his singlet in a double gesture of contempt; a tuft of chest hair deputized for a tie.
Jenkins, Geoffrey A DAYSTAR OF FEAR (2003)
Luis's father was there, but he was only wearing workshorts and an old singlet, and she was sorry for Luis.
Ursula K. Le Guin THE BIRTHDAY OF THE WORLD (2003)