1. a steep downward plunge, especially of an aircraft
2. a sudden sharp decline or deterioration
Usage: figurative

1. to plunge steeply downward
2. to decline suddenly and sharply
Usage: figurative

Examples

• The fighter jet went into a nosedive after being hit.
• Stock prices took a nosedive after the announcement.
• The plane began to nosedive toward the ground.
• His grades nosedived in his final semester.
• The company’s profits nosedived last quarter.
• The pilot pulled out of the nosedive just in time.
• Her popularity nosedived after the scandal broke.