Terminology
There are several other terms for undergarments. Underclothes, underclothing and underwear are formal terms, while undergarments may be more casually called, in Australia, Reg Grundys (rhyming slang for undies) and Reginalds, and, in the United Kingdom, smalls (from the earlier smallclothes) and (historically) unmentionables. In the United States, women's underwear may be known as delicates due to the recommended washing machine cycle.
Women's undergarments collectively are called lingerie. They also are called intimate clothing and intimates.
An undershirt (vest in the United Kingdom) is a piece of underwear covering the torso, while underpants (often pants in the United Kingdom), drawers, and shorts cover the genitals and buttocks. Terms for specific undergarments are shown in the table below.
Not wearing underwear under outer clothing is known in American slang as freeballing for men or freeboobing for women, or as going commando for either sex.
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