How to say "constitution" in Japanese

• 憲法けんぽうJLPT N3approx.Common
  nounCovers 'constitution' in the political and legal sense: the fundamental law of a nation or state. This is the word you want when talking about a country's constitution.
  アメリカには憲法上けんぽうじょうの抑制よくせいと均衡きんこうという入念にゅうねんな制度せいどがある。↗

  America has an elaborate system of constitutional checks and balances.
• 体質たいしつCommon
  nounCovers 'constitution' in the physical sense: a person's bodily make-up and inherent tendencies, including predisposition to disease. Used when discussing the sort of health a person naturally has.
  私のおいは卵たまごに対たいしてアレルギー体質たいしつだ。↗

  My nephew is allergic to eggs.
• 組成そせいCommon
  noun, suru verb, transitive verbCovers 'constitution' only in the sense of composition: what something consists of, for example the makeup of a substance or mixture. It is not the word for a nation's laws or a person's health.
• 会則かいそくCommon
  nounThe constitution of a club or society: the rules and regulations such an organization sets for itself. Not the word for a nation's fundamental law.
• 体格たいかくJLPT N1approx.Common
  nounMeans build or physique: a person's bodily frame. As a way to say 'constitution' it is marginal; for physical constitution in the sense of bodily make-up, use 体質.
  そのスポーツ選手せんしゅはがっしりした体格たいかくをしていた。↗

  The athlete had a strong build.

Use 憲法 for a nation's constitution, 会則 for a club's or society's constitution, 体質 for a person's physical constitution, 体格 for build or physique, and 組成 for the composition or makeup of something.

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

• 憲法けんぽうconstitution
• 体質たいしつconstitution (physical)
• 組成そせいcomposition
• 会則かいそくsociety regulations
• 体格たいかくbuild
• コンスティチューションconstitution
• 器質きしつorgan property
• 朝憲ちょうけんlaws of a nation
• 組織そしきstructure
• 素質そしつnature
• 体からだhealth