排気 はいき Meanings Noun, する verb, Intransitive exhaust; emission (of gas from an engine) Antonym: 吸気 (きゅうき). expulsion (of air); ventilation Kanji 排 expel. Read as ハイ. 気 spirit. Read as いき. Words containing 排気 排気量 (はいきりょう) (engine) displacement 排気ガス (はいきガス) exhaust fumes 排気管 (はいきかん) exhaust pipe And 6 more. Jinuma: Japanese Dictionary · Word lists