Synonyms for

Proof

Verb / pru:f / Another word for proof — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

Evidence or argument establishing a fact or the truth of a statement.

Synonyms & similar words

validation proofread testcopy substantiation trialimpression cogentevidence evidence verification confirmation validation attestation corroboration substantiation demonstration testimony witness affirmation declaration testament testimonial support endorsement backing authorization ratification approval

Synonyms by register

Formal

evidence confirmation substantiation verification demonstration

Informal

show sign clue tip-off

Literary

testimony vindication attestation

Antonyms

disproof refutation rebuttal contradiction disproving denial

Common collocations

  • hard proof
  • conclusive proof
  • proof of concept
  • proof of identity
  • proof of purchase
  • proof of address
  • proof of payment
  • proof of work

Word family

noun proof
verb prove
adjective proof
adverb provably

Usage note

As a noun, 'proof' refers to evidence or argument establishing a fact or the truth of a statement. It is often used in formal contexts like mathematics or law.

Example sentences

  1. I have proof that I didn't break the vase.
  2. The fingerprint was proof enough that he was at the scene of the crime.
  3. She needed proof of her vaccination to travel.
  4. The math problem required proof to show the answer was correct.
  5. The lawyer presented proof that his client was innocent.

Quotes

  • The burden of proof is always on the claimant. - Carl Sagan
  • Proof is the idol before whom the pure mathematician tortures himself. - Arthur Eddington
  • Believe nothing you hear, and only one half that you see. - Edgar Allan Poe

Try these popular words

the and that for you with was this are have not from

Practice

Play the Word Synonyms game · Choose level (start near 1)

Worksheets

Grade 4 · Grade 5 · Grade 6

Topics

Guides

Explore more words