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conjetura

kon-heh-TOO-rah/koŋxeˈtuɾa/

“conjetura” means “guess” in Spanish (an opinion formed without complete evidence).

guess, conjecture

Also: speculation, hypothesis
NounfB2
A child looking at a large glass jar filled with colorful jellybeans, tapping their chin thoughtfully while trying to estimate the amount.

📝 In Action

No tengo pruebas, es solo una conjetura.

B1

I don't have proof, it's just a guess.

Su teoría se basa en puras conjeturas.

B2

His theory is based on pure speculation.

Las conjeturas sobre el fin del mundo son muy comunes.

C1

Speculations about the end of the world are very common.

Word Connections

Synonyms

  • suposición (assumption)
  • hipótesis (hypothesis)
  • presunción (presumption)

Antonyms

Common Collocations

  • hacer una conjetura – to make a guess
  • basarse en conjeturas – to be based on guesswork
  • pura conjetura – pure speculation

Idioms & Expressions

  • perderse en conjeturas – to spend too much time imagining unlikely possibilities

Translate to Spanish

Words that translate to "conjetura" in Spanish:

conjecture→hypothesis→speculation→

✏️ Quick Practice

Quick Quiz: conjetura

Question 1 of 3

Which of these is a synonym for 'conjetura'?

📚 More Resources

👥 Word Family▼
conjeturar(to guess/speculate) — Verb
conjetural(speculative) — Adjective
conjeturable(guessable) — Adjective
🎵 Rhymes▼
📚 Etymology▼

From Latin 'coniectūra', which comes from 'con' (together) and 'iacere' (to throw). It literally means 'throwing things together' to see what fits.

First recorded: 15th century

Cognates (Related words)

English: conjectureFrench: conjecturePortuguese: conjetura

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Frequently Asked Questions

Is 'conjetura' more formal than 'suposición'?

Yes. While both mean 'guess' or 'assumption,' 'conjetura' is used more in academic, literary, or serious contexts.

How do you say 'I guess' using this word?

You wouldn't usually say 'Yo conjeturo' in daily conversation. You'd say 'Mi conjetura es que...' or just use 'Supongo que...' (I suppose that...).

Can 'conjetura' be used in science?

Absolutely. It often refers to a mathematical or scientific proposition that hasn't been proven yet but seems likely to be true.