排気|はいきhaiki[0]heiban (flat)

Common
Definitions
  1. noun, suru verb, intransitive verbexhaust; emission (of gas from an engine)
  2. noun, suru verb, intransitive verbexpulsion (of air); ventilation
Conjugation
Dictionary form排気する(はいきする)
Polite (masu)排気します(はいきします)
Negative (nai)排気しない(はいきしない)
polite (masen)排気しません(はいきしません)
classical zu / nu排気せず・排気せぬ(はいきせず・はいきせぬ)
Past (ta)排気した(はいきした)
polite (mashita)排気しました(はいきしました)
Past negative (nakatta)排気しなかった(はいきしなかった)
polite (masen deshita)排気しませんでした(はいきしませんでした)
Te form排気して(はいきして)
Potential排気できる(はいきできる)
Passive排気される(はいきされる)
Causative排気させる(はいきさせる)
Causative passive排気させられる(はいきさせられる)
Conditional (ba)排気すれば(はいきすれば)
tara排気したら(はいきしたら)
Volitional排気しよう(はいきしよう)
polite (mashou)排気しましょう(はいきしましょう)
Imperative排気しろ(はいきしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Related排気ガスはいきガスNeutralThe fumes an internal combustion engine discharges, as in 「排気ガス規制」; 「排気」 is the act of venting gas, though it can also mean the gas itself.
  • Related排ガスはいガスWrittenDirty gas from cars or engines burning fuel; frequent in news and regulations, as in 「排ガス規制」. 「排気」 leans toward the act of discharge.
  • Antonym吸気きゅうきWrittenWritten/formal term for drawing air in; the opposite of 「排気」 on the expel-versus-intake side.
  • Antonym給気きゅうきWrittenWritten/formal term for supplying a device with air from outside; the opposite of 「排気」 on the discharge-versus-supply side.

Use 「排気」 for venting used gas, as in 「排気口」 and 「排気管」; engine displacement is 「排気量」. For the fumes themselves use 「排気ガス」 or 「排ガス」; 「吸気」 and 「給気」 are the opposites, intake and air supply.

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

Japanese definitions
  1. 装置そうちで使用しようした気体きたいを、そのそとに放出ほうしゅつすること。
Kanji in this word
English equivalents
See also

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