A sleeveless shirt tailored to display the muscles of the body.
A sleeveless buttonless shirt with a low-cut neck.
A person who does not have a form of multiplicity, i.e. a single persona occupying one human body.
A multiplet having a single member, especially a single spectroscopic peak.
A quantum state having zero spin.
A one-piece, tight-fitting uniform, usually made of spandex or nylon, required in wrestling and powerlifting.