verb
certify
SER-tih-fy/ˈsɜːrtɪfaɪ/
To make an authoritative declaration of someone's status or qualification.
The inspector stamps the document to certify the scale's calibration.

Etymology
Literally “make certain,” certify came to mean declaring the truth of something or vouching for it. An official who certifies a claim gives it that formal assurance.
In context
we must certify this level and the book makes it very easy for the students to prepare for a certificate we have the external exam trainer section
More examples
- The agency certifies that the product meets its standards.
- A qualified professional must certify the copy as accurate.
- The historical record describes a patient certified as legally incompetent.
Forms
certify · certifies · certified · certifying
Similar words
- verify
- Checks or establishes accuracy without necessarily formal authority.
- accredit
- Formally recognizes an institution or person's qualifications for a role.