1. an action or event that causes the destruction or failure of something
Usage: often figurative
2. a blow or strike that causes death
Usage: literal sense

Examples

• The scandal was a deathblow to his political career.
• Rising costs dealt a deathblow to the small business.
• The new regulations could be the deathblow for the industry.
• The warrior delivered the deathblow with his sword.
• The economic crisis was the deathblow to their expansion plans.
• Competition from online retailers was a deathblow to many bookstores.
• The knight’s deathblow ended the battle quickly.