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Idioms and Phrases with knight in shining armor

knight in shining armor

A rescuer or defender, as in What this political party needs is a knight in shining armor to change its tarnished image. This metaphoric expression alludes to a medieval knight. [Mid-1900s]

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.