1. a very high hill, typically over 1,000 feet in elevation
2. a large amount or quantity of something
Usage: figurative

Examples

• Mount Everest is the world’s highest mountain.
• We hiked up the mountain trail for three hours.
• The Rocky Mountains stretch across several states.
• Snow covered the mountain peaks all winter.
• She had a mountain of homework to complete.
• The company faced a mountain of debt.
• There’s a mountain of laundry in the basement.