Learn

Road map Kana Immersion Culture

Look up

Dictionary Grammar Reading level

Prove it

Lessons Dictionary Games Kana

v7.3What's newStudy levelSend feedbackReviewFriendsSettingsNotifications

© 2026 Nihongo CircleAbout Changelog Genki companion Credits Terms Privacy Security built by MELTEN

要因

よういん

particle

Meanings

1primary factor
2main cause

Example sentence

彼らのけんかには多くの要因がからんでいる。

There are many factors behind the quarrel between them.

Your sentences

Kanji in this word

要Need, Main Point, Essence9 strokes 因Cause, Factor, Be Associated With6 strokes

More words with 要

要望ようぼう · demand forN1 要領ようりょう · gistN2 要旨ようし · gistN2 需要じゅよう · demandN3 重要じゅうよう · important

Full entry on Jisho

N3

要するにようするに · in a wordN3

要求ようきゅう · requestN3

要請ようせい · claimN1

More words with 因

原因げんいん · causeN4 に因ってによって · according to 一因いちいん · one cause 因子いんし · factor 因みにちなみに · by the way 因果いんが · cause and effect 因縁いんねん · fate 起因きいん · to be caused by

More at JLPT N1

All 2,699 N1 words All 1,232 N1 kanji Everything N1