1. the activity of fighting a war or engaging in armed conflict
2. a sustained campaign or struggle between opposing groups or ideas
Usage: figurative

Examples

• Modern warfare relies heavily on advanced technology.
• The country has been engaged in warfare for over a decade.
• Chemical warfare is banned under international law.
• The two companies engaged in price warfare to gain market share.
• Guerrilla warfare tactics proved effective against the larger army.
• The documentary explored the psychological effects of warfare on soldiers.
• Political warfare between the parties intensified before the election.