trousers ( def. 1 ) .

underpants, esp. for women and children; panties.

British . men's underpants, esp. long drawers. ?

wear the pants

to have the dominant role; be in charge

I guess we know who wears the pants in that family.

noun

bermudas , bloomers , blue jeans , boxer shorts , breeches , briefs , britches , chaps , chinos , clam diggers , cords , corduroys , denims , drawers , dungarees , jeans , jodhpurs , knickers , overalls , pantaloons , panties * , pedal pushers * , shorts , slacks , trousers , underpants , capri , chaparejos , chapareras (leather breeches) , kneebreeches , knickerbockers , pl (colloq.) trousers , skilts , smallclothes