1. claiming or securing something in advance; taking action beforehand to prevent someone else from obtaining or using something
Usage: present participle of preempt; formal/legal contexts

Examples

• The company is preexempting competitors by filing patents on the new technology.
• By preexempting the best office space, the executive team ensured prime real estate for the new department.
• The government was preexempting private development by purchasing the land first.
• She succeeded in preexempting her rival's argument by addressing it in her opening statement.
• The law allows municipalities to begin preexempting property rights before formal disputes arise.