Noun

(en-noun)

Clothes worn next to the skin, underneath outer clothing.

* 2006 , Toni L. Meilleur, Tournament of Fire

“A thong,” she answered him breathlessly. Now completely turned on by the fact that his man was sniffing her underwear and grinning like a tiger that took down its prey. That is if tigers could smile and still look sexy.

Underpants (boxers, briefs, panties, etc) and bras.

Noun

(en-plural noun)

(dated) underwear; undergarments.

* {{quote-book, year=1901, author=Maurice Hewlett, title=The Life and Death of Richard Yea-and-Nay, chapter=, edition= citation

, passage=They put on her a purple vest, thickly embroidered with gold and pearls, underdrawers of scarlet silk, and gauze trousers (such as Eastern women wear) of many folds. }}

* {{quote-book, year=, author=Peter B. Kyne, title=Captain Scraggs, chapter=, edition= citation

, passage=He was quite an imposing spectacle in his bare feet, with his trousers rolled up to his great knees, thereby revealing his scarlet flannel underdrawers . }}

* {{quote-book, year=1916, author=Jackson Gregory, title=The Short Cut, chapter=, edition= citation

, passage=Then, his laughter suddenly booming out he bunched his muscles and a black haired giant of a man in shirt and underdrawers was jerked floundering out of his bunk to the middle of the room. }}

* {{quote-book, year=1921, author=William Patterson White, title=The Heart of the Range, chapter=, edition= citation

, passage=His extra shirt, instead of being wadded into the fore-end of the saddlebag on top of a pair of socks, had been stuffed into the hinder end on top of a pair of underdrawers . }}