A female undergarment is commonly referred to as a bra. The term 'bra' is an abbreviation of the word brassiere, which was first used in the early 1900s. A bra is designed to support a woman's breasts and provide comfort and coverage. It is typically made from a combination of fabrics such as cotton, spandex, and lace. Different styles of bras are available to suit different body types and preferences.