Definition of "crusade" [cru•sade]

  • Any of the military expeditions undertaken by European Christians in the 11th, 12th, and 13th centuries to recover the Holy Land from the Muslims. (noun)
  • A holy war undertaken with papal sanction. (noun)
  • A vigorous concerted movement for a cause or against an abuse. See Synonyms at campaign. (noun)
  • To engage in a crusade. (verb-intransitive)
  • Any of the military expeditions undertaken in the 11th, 12th, and 13th centuries by the Christian powers of Europe to recapture the Holy Land from the Muslims (noun)

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.

  • (formerly) any holy war undertaken on behalf of a religious cause (noun)
  • A vigorous and dedicated action or movement in favour of a cause (noun)
  • To campaign vigorously for something (verb)
  • To go on a crusade (verb)

www.Collinsdictionary.com (c) HarperCollins Publishers Ltd 2016

Use "crusade" in a sentence
  • "In a letter written in 1954, Farber used the word crusade to describe their campaign against cancer."
  • "The emotional drive behind the anti-chain crusade is an understandable mistrust of big corporations allied with the knee-jerk snobbery that is never far from the surface in American cultural life."
  • "To know this and yet continue on the crusade is a logic of cowardice and extreme idiocy."