First opened Friday, May 22, 2026
要因
よういん
- flat (heiban)
How to read it: a line over a kana means the voice is high there, and ↓ marks where it drops. A kana with no line is low. With no ↓ the pitch stays high to the end and does not drop even on a following particle (が, は).
primary factor, main cause
Taken apart
We don't have the data for this section. Wiktionary has no Etymology section for this reading, and a split made without one would be a guess.
In a sentence
健康は幸福の重要な要因だ。
Health is an important factor of happiness.
富は幸福の一要因ではあろう。
Wealth may be a factor of happiness.
Sentences are from Tatoeba (CC BY 2.0 FR), picked by fixed rules from a dated export and shown unchanged. Nobody has reviewed them one by one.
What Wiktionary says
We don't have the data for this section. The pinned Wiktionary dump has no Etymology section for this reading, so nothing is said about where the word comes from.
What the labels mean
- 漢語 Sino-Japanese
- Words built from Chinese-derived morphemes — borrowed from Chinese or coined in Japan out of Chinese parts — read with on'yomi.