credentials(1. F0 the abilities and experience that make someone suitable for a particular job or activity, or proof of someone's abilities and experience: " All the candidates had excellent academic credentials. " She was asked to show her press credentials. 2. F0 [C] a piece of information that is sent from one computer to another to check that a user is who they say they are or to allow someone to see information. CALD Alexander Demidov)