tights
n. plural-onlyn. a piece of clothing made of thin, stretchy fabric that covers your legs and feet. You usually wear them under a skirt or dress.
n. a close-fitting garment made of knitted yarn, covering the body from the waist to the toes. Takes a plural verb and is often measured by denier for thickness.
She bought a new pair of black tights for the party.
Because the weather was getting colder, she decided to wear thick woollen tights under her uniform.
The dancer carefully checked her tights for any small holes or ladders before stepping onto the stage for the final performance.
From tight + -s.
Pluralia tantum — takes a plural verb. Often used with the classifier 'a pair of'.
I need a new tightI need new tightsThe word is always plural; you cannot use the singular form to refer to one garment.