One that competes with another, as in sports or business; a rival.(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 "competitor" in a sentence
"You might get some insights into what you are missing and you would to get to know how aggressive the competitor is at the least."
"Obviously, if the German government should decide to subsidize EADS (whos main competitor is Boeing), the French wouldn’t protest …"
"BrightSource, an Oakland competitor, is licensed to build 2,600 megawatts of capacity across 14 plants."