underframe
— Noun
– English
~ the internal supporting structure that gives an artifact its shape; "the building has a steel skeleton"
underfur
— Noun
– English
~ thick soft fur lying beneath the longer and coarser guard hair
undergarment
— Noun
– English
~ a garment worn under other garments
undergrad
— Noun
– English
~ a university student who has not yet received a first degree
undergraduate
— Noun
– English
~ a university student who has not yet received a first degree
Underground Railway
— Noun
– English
~ secret aid to escaping slaves that was provided by abolitionists in the years before the American Civil War
underground
— Noun
– English
~ an electric railway operating below the surface of the ground (usually in a city); "in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'"
underground press
— Noun
– English
~ a system of clandestine printing and distribution of dissident or banned literature
underground
— Noun
– English
~ a secret group organized to overthrow a government or occupation force
Underground Railroad
— Noun
– English
~ secret aid to escaping slaves that was provided by abolitionists in the years before the American Civil War
undergrowth
— Noun
– English
~ the brush (small trees and bushes and ferns etc.) growing beneath taller trees in a wood or forest
underlay
— Noun
– English
~ a pad placed under a carpet
underlayment
— Noun
– English
~ a pad placed under a carpet
underline
— Noun
– English
~ a line drawn underneath (especially under written matter)
underling
— Noun
– English
~ an assistant subject to the authority or control of another
undernourishment
— Noun
– English
~ not having enough food to develop or function normally
underpants
— Noun
– English
~ an undergarment that covers the body from the waist no further than to the thighs; usually worn next to the skin
underpart
— Noun
– English
~ a part lying on the lower side or underneath an animal's body; "the warbler has a white throat and underparts"; "a woodland mouse with white underparts"
underpass
— Noun
– English
~ an underground tunnel or passage enabling pedestrians to cross a road or railway