費やす|ついやすtsuiyasu[3]nakadaka (mid-high)
This browser can't play pronunciations (needs Safari 18.4 or later, or Chrome / Edge / Firefox).
Definitions
- godan verb, transitive verbto spend; to expend; to consume
- godan verb, transitive verbto waste; to squander; to throw away
- godan verb, transitive verbto devote
Conjugation
| Dictionary form | 費やす（ついやす） |
|---|---|
| Polite (masu) | 費やします（ついやします） |
| Negative (nai) | 費やさない（ついやさない） |
| polite (masen) | 費やしません（ついやしません） |
| classical zu / nu | 費やさず・費やさぬ（ついやさず・ついやさぬ） |
| Past (ta) | 費やした（ついやした） |
| polite (mashita) | 費やしました（ついやしました） |
| Past negative (nakatta) | 費やさなかった（ついやさなかった） |
| polite (masen deshita) | 費やしませんでした（ついやしませんでした） |
| Te form | 費やして（ついやして） |
| Potential | 費やせる（ついやせる） |
| Passive | 費やされる（ついやされる） |
| Causative | 費やさせる（ついやさせる） |
| Causative passive | 費やさせられる（ついやさせられる） |
| Conditional (ba) | 費やせば（ついやせば） |
| tara | 費やしたら（ついやしたら） |
| Volitional | 費やそう（ついやそう） |
| polite (mashou) | 費やしましょう（ついやしましょう） |
| Imperative | 費やせ（ついやせ） |
Common forms generated by rule; see the senses for honorific or irregular usage.
Transitive / intransitive pair
貯金を費やす
The intransitive 費える with が emphasizes that a resource is used up or dwindles (貯金が費える); the transitive 費やす with を emphasizes that someone spends or uses up that resource (貯金を費やす).
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Synonyms & antonyms
- Synonym消費しょうひNeutralA noun for consuming goods or energy; an economics-flavoured term. 「費やす」 instead centres on devoting time or money to a purpose.
- Synonym消耗しょうもうWrittenA written/formal noun for using up physical strength or supplies, as in 「体力を消耗」; the focus is on depletion.
- Related使うつかうNeutralThe plain everyday verb for using something; its range is the broadest of all these words.
- Related支出ししゅつWrittenA written/formal noun for money paid out for a purpose, as in 「家計の支出」 or 「財政支出」; an accounting term. 「費やす」 is a verb that also covers time and effort.
- Related払うはらうNeutralA verb for paying money, as in 「代金を払う」; it centres on the act of payment itself.
- Antonym貯めるためるNeutralA verb for saving money up, as in 「お金を貯める」; the opposite of spending it.
- Antonym節約するNeutralA verb for economizing, as in 「電気を節約する」; it is the direct opposite of 「費やす」.
Use 「費やす」 to devote time, money or effort to something, as in 「時間を費やす」. For consumption choose 「消費」, for draining strength or supplies 「消耗」, for outlays 「支出」, for paying 「払う」. To save money, use 「貯める」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese definitions
Kanji in this word
English equivalents
See also
