1. turned upside down or on end
Usage: past tense and past participle of upend
2. disrupted or overthrown completely
Usage: figurative use

Examples

• The strong wind upended the outdoor table.
• She upended the box to empty its contents.
• The scandal upended his political career.
• New technology upended the entire industry.
• The boat was upended by the massive wave.
• Their arrival upended our quiet evening plans.