Singlet
# Singlet

Singlet may refer to:

* singlet state, in theoretical physics, a quantum state with zero spin
* Singlet fission, in molecular photophysics
* in spectroscopy, an entity appearing as a single peak; see NMR spectroscopy
* in optics, a single lens element, the building blocks of lens systems; see lens (optics)
* a one-piece collarless garment, also known as a sleeveless shirt or vest
   * wrestling singlet, a one-piece garment specific to wrestling
* BID/60, a British encryption machine
* Singlet oxygen, the common name used for an excited form of molecular oxygen
