# attest

/əˈtɛst/ (US) · /ɐtˈɛst/ (UK)

Source: https://englishreference.com/word/attest
Updated: 2026-08-27

## Senses

### 1. to provide evidence

verb · CEFR C1 · Formal

to show that something is true or exists by being an example of it.

For teachers: to serve as evidence or proof of something. Often used with the preposition 'to'.

- The long lines at the bakery attest to the quality of their bread.
- The numerous awards displayed in the lobby attest to the firm's long-standing commitment to architectural excellence.

Usage: Often takes the preposition 'to' when indicating evidence.

### 2. to certify formally

verb · CEFR C1 · Formal · Technical

to state formally that something is true, especially by signing a document.

For teachers: to affirm that something is correct, true, or genuine, typically in an official or legal capacity.

- The witness had to attest that the signature on the contract was real.
- The notary public is required to attest to the identity of the signatories before the deed can be finalised.

Usage: Usually transitive when used in legal contexts.

## Examples

- His many awards attest to his great skill.
- The lawyer asked the witness to attest to the validity of the signature on the contract.
- The archaeological findings in the valley attest to a sophisticated civilization that flourished long before the arrival of colonial explorers, challenging previous historical assumptions.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.