singlet

1. A set of one, an item not part of a larger set, particularly:

2. A set of one, an item not part of a larger set, particularly:Examples: "2003, Timothy M. Cox, 90: Protoporphyria, Karl M. Kadish, Kevin M. Smith, Roger Guilard, (editors), The Porphyrin Handbook, Volume 14: Medical Aspects of Porphyrins, page 132, When a ground state molecule absorbs a photon, the values of the electron spins are not altered and thus the primary excited state is the singlet state."; "However, even if it were possible to supply benzophenone with radiation of the appropriate wavelength to produce the second excited singlet state of the molecule, this singlet would rapidly convert to the lowest singlet state (S1)."

3. A set of one, an item not part of a larger set, particularly:Examples: "Singlet and monocultural identity is so normalized that many voice hearers and plurals don’t share their experiences with anyone, living in isolation (and sometimes in poverty) and spending considerable inner resources to manage postures and performances of ‘mental health’."; "Her system started when she was 17 years old: “We were not created by trauma. It started from being a singlet (one body, one person), but then, we lost our sense of self. […]"; "More strongly, respect might require that singlets themselves accept, in the context of interacting with plurals, that people are truly distinct people."Antonyms: multiple, system

4. A single piece of clothing, particularly:Examples: "Winston wrenched his body out of bed — naked, for a member of the Outer Party received only 3,000 clothing coupons annually, and a suit of pyjamas was 600 — and seized a dingy singlet and a pair of shorts that were lying across a chair."; "2000, Nicole Matthews, Kitsch on the Fringe: Suburbia in Recent Australian Comedy Film, Roger Webster, Expanding Suburbia: Reviewing Suburban Narratives, page 176, The semiotics of the singlet - immediately identifiable in Australia, especially in its usual shade of blue, with male manual labourers¹⁶ - underlines the contrast between the effete fakery of ballroom costumes and real masculinity to be found underneath or in the world of folk dancing."; "However, even in the latter he wears a blue singlet to help remind the audience of his working-class roots."Synonyms: undershirt, vestAustraliaIrelandNew-ZealandNigeriaSingaporeUK

5. A single piece of clothing, particularly: