What does 比例 mean?
比例 is a Japanese noun meaning “proportion” in English. It can also be translated as “proportional representation section (of an election)” depending on context. It is written as 比例 in kanji, ひれい in hiragana, and hirei in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
給与が増えるに比例して、所得税率もあがっていく。
The income tax rate increases in proportion as your salary rises.