singlet
/ˈsɪŋɡlɪt/noun
High School
1
A multiplet having a single member, especially a single spectroscopic peak.
2
A quantum state having zero spin.
3
A person who does not have a form of multiplicity; a single self or personality occupying one human body.
4
A sleeveless buttonless shirt with a low-cut neck.
5
A one-piece, tight-fitting uniform, usually made of spandex or nylon, required in wrestling and powerlifting.