Definition of "corroborate" [cor•rob•o•rate]

• To strengthen or support with other evidence; make more certain. See Synonyms at confirm. (verb-transitive)

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.

• "These terms corroborate and identify themselves with the most ancient of traditionary customs, long ere princes had monopolised the surface of coined money with their own images and superscriptions."
• "Collaborate/Corroborate: To collaborate is to work closely with others; to corroborate is to confirm the truth of something."
• "* '' 'Collaborate/Corroborate' '': To collaborate is to work closely with others; to corroborate is to confirm the truth of something."