1. plural of flattener; things or people that flatten or make something flat or level
Usage: commonly used in industrial, construction, and manufacturing contexts
2. in sports or competition, events or performances that reduce or eliminate an opponent's advantage
Usage: informal usage

Examples

• The construction crew used several flatteners to compress the gravel base.
• Road flatteners are essential equipment for asphalt paving projects.
• The team's defensive strategy proved to be one of their best flatteners against stronger opponents.
• Industrial flatteners can process thousands of metal sheets per day.
• Those surprise goals were real flatteners for the home team's momentum.