To do more or better than in performance or action. See Synonyms at excel. (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.
Use "outdo" in a sentence
"Meanwhile, the company has seen its DVD sales of other titles outdo those of rivals because of its younger-skewing audience."
"Nir Rosen, a fellow at the New York University Center for Law and Security, has appropriately quit after his callous Twitter comments, including a statement, "i'm rolling my eyes at all the attention she will get," and another one stating that she was trying to "outdo" CNN's Anderson Cooper, who was beaten up on the streets of Cairo."
"Isn't it ridiculous to think that you can 'outdo' the original source?"