Informal The practical experiences of life, including hardships and disappointments: "He hadn't grown up in the school of hard knocks. Politically he had lived an easy life” ( Thomas P. O'Neill, Jr.)
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.