noun
base of a polygon
Geometry term for the side treated as the base of a triangle or other polygon.
三角形の底辺の長さを求めなさい。
Find the length of the base of the triangle.
noun
bottom of the social scale
Used for the lowest layer of a social, economic, or organizational hierarchy. In social contexts it can sound harsh, stigmatizing, or critical.
彼は社会の底辺から抜け出そうと必死に働いた。
He worked desperately to escape the bottom of society.
noun
Refers to the broad supporting base or foundation of something, often in phrases such as 底辺を支える or 底辺を拡大する. The image may overlap with a lower layer that supports the whole.
地域クラブの育成は、競技の底辺を拡大するために重要だ。
Developing local clubs is important for expanding the base of the sport.