theorem

noun

Definition of theoremnext
as in theory
technical an idea or statement that can be proved from other ideas or statements Her theorem was based on years studying the laws of physics.

Related Words

Relevance

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of theorem While writing their paper, Erdős and Szekeres discovered a theorem from the young British polymath Frank Ramsey, who had already done groundbreaking work in philosophy, economics and math by his untimely death at age 26. — Jack Murtagh, Scientific American, 10 Aug. 2026 Sparky interpreted the drawing, prompted him to use the Pythagorean theorem, and then asked him to form the appropriate ratio. — Ray Ravaglia, Forbes.com, 21 July 2026 Like, if the end is to predict nature, to be able to find formulas and theorems that are true, understanding may be a crutch. — Quanta Magazine, 25 June 2026 This began 50 years ago, when mathematicians used a computer to prove the four-color theorem, which asks whether any map can be colored using no more than four colors, with no adjacent regions sharing the same color. — Benjamin Skuse, IEEE Spectrum, 25 June 2026 See All Example Sentences for theorem
Recent Examples of Synonyms for theorem
  1. theory
  2. thesis
Noun
  • The lipstick index is an economic theory holding that sales of affordable discretionary spending or luxuries skyrocket when consumers believe an economic recession is impending.
    — Sarah Glodek, Fortune, 28 Aug. 2026
  • Yet Turing’s theory of computation wasn’t really about computers, at least not at first.
    — Ben Brubaker, Quanta Magazine, 28 Aug. 2026
Definition of theory
Noun
  • The Venture Capital Thesis At IXSAR Capital, our thesis is that intelligent systems are becoming the next major technology platform.
    — John Gabriel, Forbes.com, 2 Sep. 2026
  • Yet Cao’s projects are less expository than Farocki’s, less resolute in their theses.
    — Pablo Larios, Artforum, 1 Sep. 2026
Definition of thesis

Browse Nearby Words

theology
theorem
theorems
See all Nearby Words

Cite this Entry

“Theorem.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/theorem. Accessed 5 Sep. 2026.

Copy Citation

More from Merriam-Webster on theorem

Britannica.com: Encyclopedia article about theorem

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

A List of Most Commonly Confused Words

Why do we use apostrophes to show possession?

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

The Longest Long Words List

Stay Woke

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

The Words of the Week - Sept. 4
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

The Longest Long Words List

Stay Woke
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
anagrams on a chalk board
Word Builder Quiz Vol. 2 Pick the letter that when added to a word will ma...
See All