- The definition of a call-up is an order to serve in the armed forces.
When you receive a notice requiring you to report for active military duty, this is an example of a call-up.
call-up 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.
Mil. an order, as to those in the reserves, to report for active duty
call-up definition by American Heritage Dictionary
The 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.
The act or an instance of summoning reserve military personnel to active service.
call-up - Phrases/Idioms
Summon to military service, as in He was called up for active duty. [Late 1600s]
Cause to remember, bring to mind, as in These stories call up old times. [c. 1700] Also see call to mind.
Telephone someone, as in I'll call up the theater and find out about tickets. [Late 1800s]
Retrieve data from a computer memory, as in I asked him to call up the last quarter's sales figures. [Second half of 1900s]