吸気(きゅうき)

きゅうき
noun
inhalation; intake air; air intake
Conjugation
AffirmativeNegative
Present吸気(きゅうき)する吸気(きゅうき)しない
Present polite吸気(きゅうき)します吸気(きゅうき)しません
Past吸気(きゅうき)した吸気(きゅうき)しなかった
Past polite吸気(きゅうき)しました吸気(きゅうき)しませんでした
て form吸気(きゅうき)して吸気(きゅうき)しなくて
ている present吸気(きゅうき)している吸気(きゅうき)していない
ている polite吸気(きゅうき)しています吸気(きゅうき)していません
ている past吸気(きゅうき)していた吸気(きゅうき)していなかった
ている past polite吸気(きゅうき)していました吸気(きゅうき)していませんでした
Conditional ば吸気(きゅうき)すれば吸気(きゅうき)しなければ
Conditional たら吸気(きゅうき)したら吸気(きゅうき)しなかったら
Volitional吸気(きゅうき)しよう—
Volitional polite吸気(きゅうき)しましょう—
Potential吸気(きゅうき)できる吸気(きゅうき)できない
Passive吸気(きゅうき)される吸気(きゅうき)されない
Causative吸気(きゅうき)させる吸気(きゅうき)させない
Imperative吸気(きゅうき)しろ吸気(きゅうき)するな
1. inhalation; breathing in
The act of breathing in — drawing air into the lungs. Used in medical, physiological, and exercise contexts. The opposite is 呼気(こき) ('exhalation').
深(ふか)く吸気(きゅうき)する。
To inhale deeply.
吸気(きゅうき)と呼気(こき)のバランスが大切(たいせつ)だ。
The balance between inhalation and exhalation is important.
運動中(うんどうちゅう)は鼻(はな)からの吸気(きゅうき)を意識(いしき)するとよい。
During exercise, it is good to be mindful of breathing in through the nose.
2. intake air; air intake
Air drawn into an engine, ventilation system, or other mechanical device. Common in automotive and HVAC contexts, often combined with 口(こう) or 弁(べん) to name specific parts.
エンジンの吸気口(きゅうきこう)を掃除(そうじ)した。
I cleaned the engine's air intake.
吸気(きゅうき)フィルターが詰(つ)まっている。
The air intake filter is clogged.
この車(くるま)は吸気(きゅうき)システムを改良(かいりょう)して燃費(ねんぴ)を向上(こうじょう)させた。
This car improved fuel efficiency by enhancing its air intake system.

Compound of 吸(きゅう) ('to inhale; to suck in') and 気(き) ('air; breath'). Works as both a biological/medical term and a mechanical engineering term.

USAGE:

  • In medicine and physiology, refers to the inhalation phase of breathing; contrasted with 呼気(こき) ('exhalation').
  • In engineering, refers to air drawn into an engine or ventilation system; compounds freely: 吸気口(きゅうきこう) ('air intake port'), 吸気弁(きゅうきべん) ('intake valve'), 吸気管(きゅうきかん) ('intake pipe').
  • Sounds technical or clinical — for everyday 'breathing in' in casual speech, 息(いき)を吸(す)う is more natural.

COMMON COLLOCATIONS:

  • 吸気(きゅうき)する: to inhale
  • 吸気(きゅうき)と呼気(こき): inhalation and exhalation
  • 吸気口(きゅうきこう): air intake (port)
  • 吸気(きゅうき)フィルター: air intake filter
  • 吸気(きゅうき)システム: intake system

SIMILAR WORDS:

  • 呼気(こき): exhalation; breath going out — the direct opposite.
  • 息(いき)を吸(す)う: to breathe in — the everyday, non-technical phrasing.
  • 通気(つうき): ventilation — emphasizes airflow through a space rather than air being drawn in.
  • 排気(はいき): exhaust — the counterpart in engine contexts, referring to air being pushed out.
general
Added 2026.4.16 1:25
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