Informal One who sells tips or information, as to bettors or speculators.(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 "tipster" in a sentence
"The tipster is later identified as Trevor Graham, a sprint coach whose clients include Marion Jones, Tim Montgomery and Justin Gatlin."
"I haven’t tried anything yet, but early word from a tipster is that the saag paneer is “pretty good”."
"And according to my original tipster from the area, ” Indian Fast Food” hasbeen serving the stale pita bread that I got on my original visit, more and more these days."