in force

in force idiom
  1. In full strength, in large numbers, as in Demonstrators were out in force. This usage originally alluded to a large military force. [Early 1300s]
  2. Operative, binding, as in This rule is no longer in force. This usage originally alluded to the binding power of a law. [Late 1400s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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what is the verb that 'in force" is syntax with?

Posted by anonymous 76 days ago.

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