1. plural form of plateau; areas of relatively flat high ground
Usage: formal plural
2. plural form of plateau; periods of little or no change after a time of activity or progress
Usage: formal plural

Examples

• The mountain range contains several high plateaux above 8,000 feet.
• These ancient plateaux were formed by volcanic activity millions of years ago.
• The hiking trail crosses three different plateaux before reaching the summit.
• After initial success, the company experienced plateaux in sales growth.
• The student’s test scores showed plateaux at certain skill levels.
• Economic development in the region has reached several plateaux over the decades.