/ˈsɜː.tɪ.faɪ/ – Noun
Definition: chứng nhận, xác nhận, đảm bảo, chứng thực.
A more thorough explanation: To certify means to confirm or attest to the truth or accuracy of something, typically by providing an official statement or document verifying that a particular fact or condition is true.
Example: The notary public will certify the authenticity of the document.