排出|はいしゅつhaishutsu[0]heiban (flat)
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- noun, suru verb, transitive verbdischarge; evacuation; emission (e.g. of CO2); ejection; excretion
Conjugation
| Dictionary form | 排出する(はいしゅつする) |
|---|---|
| Polite (masu) | 排出します(はいしゅつします) |
| Negative (nai) | 排出しない(はいしゅつしない) |
| polite (masen) | 排出しません(はいしゅつしません) |
| classical zu / nu | 排出せず・排出せぬ(はいしゅつせず・はいしゅつせぬ) |
| Past (ta) | 排出した(はいしゅつした) |
| polite (mashita) | 排出しました(はいしゅつしました) |
| Past negative (nakatta) | 排出しなかった(はいしゅつしなかった) |
| polite (masen deshita) | 排出しませんでした(はいしゅつしませんでした) |
| Te form | 排出して(はいしゅつして) |
| Potential | 排出できる(はいしゅつできる) |
| Passive | 排出される(はいしゅつされる) |
| Causative | 排出させる(はいしゅつさせる) |
| Causative passive | 排出させられる(はいしゅつさせられる) |
| Conditional (ba) | 排出すれば(はいしゅつすれば) |
| tara | 排出したら(はいしゅつしたら) |
| Volitional | 排出しよう(はいしゅつしよう) |
| polite (mashou) | 排出しましょう(はいしゅつしましょう) |
| Imperative | 排出しろ(はいしゅつしろ) |
Common forms generated by rule; see the senses for honorific or irregular usage.
- Synonym排泄はいせつWrittenWritten/formal and medical: the body expelling waste such as urine and faeces, as in 「排泄物」. 「排出」 is broader, covering exhaust gas and wastewater too.
- Synonym放出ほうしゅつNeutralReleasing something held in reserve, as in 「備蓄米の放出」. 「排出」 focuses on discharging waste or exhaust.
- Related漏出ろうしゅつWrittenWritten/formal: gas or liquid leaking out, as in 「ガスの漏出」. 「排出」 means sending unwanted material from inside to the outside.
- Related流出りゅうしゅつNeutralOutflow or draining away, as in 「人材流出」. 「排出」 is about discharging waste and exhaust gases.
- Related排除はいじょNeutralRemoving obstacles or shutting out unwanted elements, as in 「障害を排除」. 「排出」 is about emitting waste and exhaust.
- Related除去じょきょNeutralGetting rid of dirt or harmful substances, as in 「汚れの除去」. 「排出」 is about discharging waste and exhaust, not cleaning.
- Related除却じょきゃくWrittenWritten/formal and rare: exclusion or elimination. In everyday speech use 「除去」 or 「排除」.
- Antonym吸入きゅうにゅうNeutralOpposite to 「排出」 in the inhaling–discharging pair: drawing in gas or medicine, as in 「酸素吸入」.
- Antonym吸収きゅうしゅうNeutralOpposite to 「排出」 in the absorbing–discharging pair: taking in water, nutrients or knowledge.
- Antonym取り入れとりいれNeutralHarvesting crops; also adopting or introducing something. Opposite to 「排出」 only in the taking-in vs letting-out direction — not a strict antonym.
Use 「排出」 for discharging waste — exhaust gas, wastewater, refuse — as in 「CO2排出量」. For the body expelling waste say 「排泄」; for releasing reserves, 「放出」; for outflows of people or money, 「流出」. 「排除」 and 「除去」 mean removing obstacles or dirt, not emitting. Main opposites: 「吸収」 and 「吸入」.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


