比率|ひりつhiritsu[0]heiban (flat)

1. nounratio; proportion; percentage
   親おやに対たいする子こどもの比率ひりつが大おおきくなればなるほど子こどもを育そだてるのは難むずかしくなる。↗

   The higher the ratio of children to parents, the harder it is to bring up the children.

• SynonymレートNeutralA loanword for exchange and fee rates, as in 「為替レート」; 「比率」 is the ratio between two numbers.
• Synonym割合わりあいNeutralProportion or share, common in everyday speech; also used adverbially to mean 'comparatively'. 「比率」 is the more written, statistical word.
• Synonym率りつNeutralMostly used as a suffix, as in 「成功率」 and 「税率」; 「比率」 is the full standalone word.
• Synonym比ひNeutralWritten 「比」 but read 「ころ」, it means an approximate time and has no connection to 「比率」; only the reading 「ひ」 means the ratio of two numbers.
• Related割合いNeutralAn alternative spelling of 「割合」 meaning proportion; it leans colloquial, whereas 「比率」 is the written, statistical term.

Use 「比率」 for the ratio of two numbers and for statistical proportions; in speech 「割合」 is the everyday choice, and 「率」 serves as a suffix like 「税率」. Go with 「レート」 for exchange or fee rates. 「比」 read 「ころ」 means 'around (a time)' and is unrelated.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 二ふたつ以上いじょうの数量すうりょうを比較ひかくした時ときの割合わりあい。