English Reference
noun

constitution

n.
US /ˌkɑnstəˈtuʃən/ UK /kˌɒnstɪtjˈuːʃən/ con·sti·tu·tion UK spelling constitutions

  1. 01 B2 Upper Intermediate Law

    the set of basic laws and principles that a country or organization is governed by.

    the fundamental principles and laws of a nation, state, or social group that determine the powers and duties of the government.

    Simple

    The country's constitution protects the right of every citizen to vote in elections.

    In context

    The proposed amendment to the constitution requires a two-thirds majority in both houses of parliament to pass into law.

    Usage

    Often capitalized when referring to a specific document, such as the US Constitution.

  2. 02 C1 Advanced Formal

    your general health and how strong your body is.

    the physical makeup of an individual, specifically regarding their inherent health, strength, and resilience.

    Simple

    He has a very strong constitution and rarely gets sick, even in winter.

    In context

    Despite her advanced age, she possessed a robust constitution that allowed her to recover quickly from the surgery.

    Teacher's tip

    In modern English, this is a formal way to describe health; 'health' or 'build' are more common in daily speech.

  3. 03 C1 Advanced Academic

    the way that something is put together or organized.

    the composition or structure of something; the way in which various parts are set up to form a whole.

    Simple

    Scientists are studying the chemical constitution of the soil on Mars.

    In context

    The genetic constitution of the species has changed significantly over thousands of years of isolation on the island.

New York's state constitution has its own prohibition on double jeopardy, which, if invoked here, could have a knock-on effect on Mangione's upcoming state trial.

BBC News· 13 Aug 2026

The federal lawsuit alleges that the service from the president's media company violates the Constitution.

NPR· 12 Aug 2026

PIE word *ḱóm From Middle English constitucioun, constitucion (“edict, law, ordinance, regulation, rule, statute; body of laws or rules, or customs; body of fundamental principles; principle or rule (of science); creation”) from Old French constitucion (modern French constitution), a learned borrowing from Latin cōnstitūtiō, cōnstitūtiōnem (“character, constitution, disposition, nature; definition; point in dispute; order, regulation; arrangement, system”), from cōnstituō (“to establish, set up; to confirm; to decide, resolve”). Equivalent to constitute + -ion.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin cōnstitūtiō
Level C1 · Advanced
Frequency Common
Updated