One that challenges: a challenger of established authority. (noun)
Sports One who competes against the holder of a title or championship, as in boxing.(noun)
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 "challenger" in a sentence
"� Her main challenger is Jose Serra, a former governor who was trailing at 33 percent."
"The French ace beat his title challenger Mikko Hirvonen by over two minutes with the Finn's compatriot and Ford Fiesta teammate Jari-Matti Latvala in third, 2:32.sec adrift."
"Oliver Shoffren�s side came up against another title challenger last week and although it only saw them take one point from a possible six against Norstar B, Shoffren was satisfied that his side gave as much as they could."