A man who proposes the toasts and introduces the speakers at a banquet. (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 "toastmaster" in a sentence
"Some of his etymologies seem plausible: Georgian tamada 'toastmaster' from Circassian thaamáta, perhaps originally 'father of the gods'; the name of General Ermolov (who conquered part of the Caucasus for Tsar Alexander I) from Circassian yarmáhl 'Armenian' (though I'll have to check Unbegaun to see if there's a more convincing etymology)."
"I haven't really mentioned it on the blog here, but I am going to be the toastmaster at MileHiCon in Denver next weekend, October 23rd through 25th."
"Each meeting has a set agenda, and members are assigned jobs such as toastmaster that night's emcee, evaluator and timekeeper."