English Dictionary

underpinning

noun

A support or foundation, especially as a structure of masonry that supports a wall. / (figuratively) A basis for something. / (figuratively, humorous) The lower body or legs.

The underpinning of the building is made of reinforced concrete.

意味（1）

A support or foundation, especially as a structure of masonry that supports a wall.

This house's underpinning is not up to standard.

意味（2）

(figuratively) A basis for something.

I would like to know more about the underpinning of this political theory.

意味（3）

(figuratively, humorous) The lower body or legs.

Thinks I to myself, “Sol, you're run off your course again. This is a rich man's summer ‘cottage’ and if you don't look out there's likely to be some nice, lively dog taking an interest in your underpinning.”