English Reference
verb

demonstrate

v.
US /ˈdɛmənˌstɹeɪt/ UK /dˈɛmənstɹˌeɪt/ demon·strate UK spelling demonstrated, demonstrates, demonstrating

  1. 01 B2 Upper Intermediate Academic

    to show that something is true by giving proof or evidence.

    to establish the validity of a proposition or theory through evidence or logical reasoning.

    Simple

    The latest research results demonstrate that the new medicine is safe for children.

    In context

    The study fails to demonstrate a significant correlation between the two variables, suggesting that further longitudinal research is required.

    Usage

    Often takes a 'that' clause or a direct object.

  2. 02 B2 Upper Intermediate

    to show someone how to do something or how a machine works.

    to explain or illustrate by experiment, example, or practical application.

    Simple

    The chef will demonstrate how to make the perfect pasta dough.

    In context

    The technician spent the afternoon demonstrating the new software's capabilities to the administrative staff to ensure a smooth transition.

    Usage

    Commonly used with 'how to'.

  3. 03 B2 Upper Intermediate

    to join a large group of people in public to show you disagree with something.

    to participate in a public meeting or march to express political views or protest against a specific issue.

    Simple

    Thousands of students gathered in the city centre to demonstrate against the new law.

    In context

    Citizens have the constitutional right to demonstrate peacefully, provided they do not obstruct the flow of essential traffic.

    Usage

    Often used with the preposition 'against'.

Usage demonstrated a new · demonstrate their ability · analysis demonstrate

This study demonstrates that it is technically possible to directly shut down the major dog allergen in a living animal.

Phys.org· 16 Aug 2026

Not always, as demonstrated by this thought-provoking but ultimately not particularly revealing documentary about Norwegian mountaineer Kristin Harila.

The Guardian· 11 Aug 2026

Borrowed from Latin dēmonstrātus, the perfect passive participle of dēmonstrō (“to show, point at”), see -ate (verb-forming suffix). Cognate with French démontrer.

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

This entry
Level B2 · Upper Intermediate
Frequency Common
Updated