WordDream · Your AI dictionary

corollary

English → EnglishformalInstant · from the shared dictionary
Illustration of "corollary": A corollary is a direct or logical consequence that follows naturally from an established fact, prop

What does "corollary" mean?

A corollary is a direct or logical consequence that follows naturally from an established fact, proposition, or theory. Think of it as a "bonus" truth: once you prove the main point, the corollary is the secondary insight that practically comes along for the ride without needing extra proof. It is primarily used in academic, mathematical, or formal argumentative contexts. You will often hear it used when someone is discussing the implications of a policy or a scientific discovery, highlighting how one truth inevitably leads to another.

"corollary" in conversation

Discussing a new office policy

If we move to fully remote work, the corollary is that we no longer need this expensive downtown office space.

If we move to fully remote work, the logical consequence is that we no longer need this expensive downtown office space.

Exactly, and we can reinvest that rent money into better software tools.

Exactly, and we can reinvest that rent money into better software tools.

Used here to describe a practical business consequence.

"corollary" in a sentence

  1. A corollary of the new law is that taxes will likely increase.

    A corollary of the new law is that taxes will likely increase.

  2. The increase in urban density is a direct corollary of the city's rapid economic growth.

    The increase in urban density is a direct corollary of the city's rapid economic growth.

  3. The theorem states that all squares are rectangles; the corollary is that all squares possess four right angles.

    The theorem states that all squares are rectangles; the corollary is that all squares possess four right angles.

Not another dictionary

An AI-native multilingual dictionary: decode the words other dictionaries can't handle.

WordDream explains every word the way a teacher would, with real-life scenes, graded examples, audio and a picture. It also covers what traditional dictionaries miss: names, places, proper nouns, internet slang, and words that don't translate.

And it isn't just English. Look up words in any language, keep a multilingual Notebook, and turn your saved words into stories with Spin a yarn.

Free account · sign in to use features

Browse the whole set in Everyday & Curious Words.

Explained by WordDream, an AI-native multilingual dictionary.