singlet

noun

sin·​glet ˈsiŋ-glət 

1

[from its having only one thickness of cloth] chiefly British : an athletic jersey

also : undershirt

2

: an atom or molecule that has no net electronic magnetic moment

also : an excited state of an atom or molecule that is a singlet

Examples of singlet in a Sentence

Recent Examples on the Web

Nassadir’s Instagram is filled with modeling photos, including a black and white series of him in a black cowboy hat, black singlet and black jeans. —Rebecca White, New York Daily News, 16 Mar. 2026

Erivo enters in dark trousers and singlet, her body lean, sinewy, covered in tattoos, her head shorn, nose ringed, fingernails fiendishly extended, a vampire in waiting. —Demetrios Matheou, HollywoodReporter, 18 Feb. 2026

The team breaks out black singlets for the finals. —Don Norcross, San Diego Union-Tribune, 17 Feb. 2026

Only instead of wearing a track singlet and shorts, she’ll be dressed in a synthetic, skin-tight speed suit. —Kevin Baxter, Los Angeles Times, 12 Feb. 2026

Word History

First Known Use

circa 1746, in the meaning defined at sense 1

Kids Definition

singlet

noun

sin·​glet ˈsiŋ-glət 

chiefly British

: undershirt