* Formal: "The applicant's impressive credentials, including a PhD and years of experience, made her a strong candidate for the position."
* Informal: "I'm not sure I trust his online reviews; his credentials seem a little sketchy."
* Specific: "The website requires users to verify their credentials before accessing sensitive information."
* Figurative: "After winning the championship, the team's credentials as a powerhouse were undeniable."
The meaning of "credentials" will depend on the context, so make sure you choose an example that best suits your intended meaning.