That which entitles one to confidence, credit, or authority.
Evidence or testimonials concerning one's right to credit, confidence, or authority: The new ambassador presented her credentials to the president.
Usage Problem To supply with credentials: "trained, professional, credentialed child care” ( Lee Salk).
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.