肥やし・肥し|こやしkoyashi[3]odaka (tail-high)
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Which spelling to use
肥やし肥やし is the most common written form. It combines kanji and kana and is the form learners are most likely to encounter and use.
肥し肥し is a less common written variant, also combining kanji and kana. Learners will encounter it less often than 肥やし.
Definitions
- nounmanure; night soil; dung; fertiliser; fertilizer
- nounsomething that will help one develop in the future
Synonyms & antonyms
- Synonym肥料ひりょうNeutralThe most common Sino-Japanese word for fertiliser in daily life and farming; fine for flowers and garden trees, and figuratively as 「心の肥料」. More formal than 「肥やし」.
- Synonym肥こえCasualColloquial word for manure, usually fertiliser made from human or animal waste; more rustic and earthy than 「肥やし」.
「肥やし」 is the native Japanese word for fertiliser, also used figuratively for what helps one grow, as in 「芸の肥やし」; for farming use 「肥料」, and for manure 「肥」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents


