ADJ. excellent, impeccable, impressive, perfect | academic, educational | diplomatic, political, scientific, etc. | democratic, green, socialist, etc.
VERB + CREDENTIALS have He has perfect credentials to make an officer. | establish, prove City established their championship credentials with a 6?0 win. | emphasize, strengthen, underline
PREP. ~ as First, he had to establish his credentials as a researcher. | ~ for She had excellent credentials for the job.
VERB + CREDENTIALS present | check, examine