Japanese word

比例

Pronunciation

Romajihirei

Meaning

  • nounproportion

Example

人数と費用は比例します。nin zū to hi yō wa hi rei shi ma su

The number of people and the cost are proportional.

Illustration for 比例 (proportion)

More examples

料金は利用時間に比例して決まります。ryō kin wa ri yō ji kan ni hi rei shi te ki ma ri ma su

The fee is determined in proportion to the time used.

Core concept

Describes two quantities changing in a linked ratio, so one keeps a fixed relationship to the other.

Common phrases

  • 比例するhi rei su ru

    be proportional

  • 比例関係hi rei kan kei

    proportional relationship

Definition in Japanese

二つの数量が、一定の割合を保って増減する関係。futa tsu no sū ryō ga it tei no wari ai o tamo tte zō gen su ru kan kei

Word origin

比 (hi, "ratio") + 例 (rei, "example or rule") forms 比例 (hirei), a Sino-Japanese compound for a relationship that follows a fixed ratio.

Usage tips

  • In English, proportion can also mean the relative size of parts in a whole, while 比例 (hirei) commonly points to quantities changing in a linked ratio.

Opposites

  • 反比例hanhireiinverse proportionnoun

Related words

  • 比例性hireiseiproportionalitynoun
  • 比例的hireitekiproportionalna-adjective

Word lists with this word