certify

B2 Topic:Actions & Processes

US /ˈsɝ.tɪ.faɪ/ UK /ˈsɜː.tɪ.faɪ/ See IPA manual

Freq #31419

Meanings

1

verb
To state officially that something has met a required standard.

These blankets have been certified as fireproof.
2

verb
To give official permission for someone to do a job.

She is certified to teach in three states.
3

verb
To declare formally that something is true.

The doctor certified that the patient was fit to work.

Verb forms

Verb forms are not available for this word yet.

Thesaurus

Synonyms

1 verb · to state officially that... approve attest confirm endorse

2 verb · to give official permission... license

3 verb · to declare formally that... show

Word family

Forms certifiedcertifiescertifying

Derived forms certifiabilitycertifiabledecertifymiscertifyovercertifyprecertifyrecertifyself-certifyuncertify

Etymology

From Old French certefier (“confirm, assure, make certain”). Compare French certifier.

*dʰeh₁- Proto-Indo-European

View etymology graph ->

Topics

Actions & Processes

External links

# certify

**Type:** Word
**Level:** B2
**Part of speech:** verb
**IPA (US):** /ˈsɝ.tɪ.faɪ/
**IPA (UK):** /ˈsɜː.tɪ.faɪ/
**Frequency rank:** 31419

## Meanings
1. To state officially that something has met a required standard.
2. To give official permission for someone to do a job.
3. To declare formally that something is true.

## Examples
- These blankets have been certified as fireproof.
- She is certified to teach in three states.
- The doctor certified that the patient was fit to work.

## Derived Forms
- certifiability
- certifiable
- decertify
- miscertify
- overcertify
- precertify
- recertify
- self-certify
- uncertify

## Roots and Affixes
- Root: *dʰeh₁-

## Etymology
From Old French certefier (“confirm, assure, make certain”). Compare French certifier.

## AI Etymology
certify is a verb. It is from Old French certefier (“confirm, assure, make certain”). Compare French certifier. Historical forms in the chain include *dʰeh₁- (Proto-Indo-European). Current senses include to state officially that something has met a required standard, to give official permission for someone to do a job, and to declare formally that something is true. Derived forms include certifiability, certifiable, decertify, miscertify, and overcertify.

## Topics
- Actions & Processes

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