good turn definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a good deed; friendly, helpful act; favor
good turn definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
An act or gesture that helps another person; a favor.
good turn - Phrases/Idioms
A favor, an act of good will, as in Pat did her a good turn by calling in a second surgeon. [First half of 1400s]