Choose the word that can substitute the given group of words.

A religions war

Crusade

The word that can substitute the given group of words is crusade.

• Crusade means "a religious war or a campaign in support of a cause."
• Colloquial means "informal or conversational in style."
• Inscription means "a written or carved message or dedication."
• Colonialism means "the policy of establishing colonies in other countries."