undershirts

Example:He wore a tank underneath his button-up shirt.

Definition:a type of undershirt, often worn under dress shirts

Example:She wore a white tee under her sweater.

Definition:a style of undershirt, typically shorter and more casual

Example:He wore a bra as an undershirt under his pajamas.

Definition:sometimes used colloquially to refer to undershirts for women, though bras and undershirts serve different functions