1. the act of making something legally null and void; cancellation
2. the theory that a state has the right to nullify federal laws within its borders
Usage: U.S. history; political theory

Examples

• The court ordered the nullification of the contract due to fraud.
• The nullification of the election results sparked widespread protests.
• South Carolina’s nullification crisis occurred in the 1830s.
• The nullification doctrine was used to challenge federal authority.
• Legal experts debated the nullification of the controversial law.
• The nullification of his citizenship was later reversed on appeal.