Definition of "refresher" []

• One that refreshes: a lemon refresher, imbibed on a hot day. (noun)
• Instruction that serves to reacquaint one with material previously studied or to bring one's knowledge or skills up to date. (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.

• "IRD, as a refresher, is a conservative political group set-up in the early 1980s by Republican activists who aimed to silence Christian voices opposed to the Reagan administration's foreign and domestic policies."
• "Promoted to Commander/05 (22 October 2009), currently in refresher flight training (jets) with Training Wing"
• "This is a rocky start; the word refresher presumes you already knew about these things:"