WordGarden.ioconjecture
C2Pronunciation
UK
- /kəndʒˈɛktʃə/
US
- /kənˈdʒɛkʃər/
Meanings
Noun
a guess or opinion formed without enough proof
an unproved mathematical or scientific proposition thought likely to be true
Verb
to form or offer a guess without enough proof
Beyond the definition
A conjecture isn't a proven fact—it's an educated guess, a thoughtful idea you think is true based on limited evidence. Think of a detective piecing together clues; their initial theory is a conjecture until they have enough proof. Mathematicians often work with conjectures—statements believed to be true but not yet formally proven. You might conjecture that your friend is upset because she hasn't returned your texts, or conjecture why the traffic is so heavy on the highway.
Imagine you're a stargazer, looking up at the night sky. You notice patterns in the stars and begin to form an idea about how they might be connected—that's a conjecture. It's more than just a random guess; it's a conclusion reached through observation and reasoning, even if you don't have all the facts yet.
A conjecture is a statement you think is true but haven't proven yet. It's especially common in mathematics, where people study claims that look true but still need a proof. For example, the Goldbach Conjecture, proposed centuries ago, suggests that every even number greater than 2 can be expressed as the sum of two prime numbers—it remains unproven to this day!
In science, people more often use the word hypothesis for a testable idea, but conjecture can still describe a thoughtful guess based on clues. In everyday life, we make conjectures all the time. If your friend is late for dinner without calling, you might conjecture that they got stuck in traffic. Or if you see dark clouds gathering, you might conjecture that it's going to rain.
The key thing to remember about a conjecture is its tentative nature. It's an idea worth exploring, but it needs evidence and proof to become a certainty. So next time you find yourself making an educated guess, remember you're forming a conjecture.
Examples
- 1
Uncertain cause
Without more evidence, the cause of the fire is still a matter of conjecture.
- 2
Weak evidence
Her theory was based more on conjecture than on hard data.
- 3
Public rumors
After the singer canceled the tour, social media filled with conjectures about her health.
- 4
Personal motives
I don't want to conjecture about his reasons until we've heard his side of the story.
- Patternconjecture about + topic
try to guess or form ideas about it
More examplesFewer examples
- 5
Formal claim
It has been conjectured that the missing pages were removed years later.
- Usageit has been conjectured that
a formal way to say people have suggested this may be true
See also
Similar
Shades of meaning
Contrast
Used with (collocations)
- mere conjecture
- pure conjecture
- a matter of conjecture
- conjecture about
Word family
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Forms and spellings
4 forms open this card.
Main spelling
- conjecturenounverb
Forms
- conjecturespluralnounverb
- conjecturedpast tenseverbnoun
- conjecturing-ing formverbnoun