Origin: Latin suffix -tion
Preemption has 5 different meanings across 1 category:
the judicial principle asserting the supremacy of federal over state legislation on the same subject
the right of a government to seize or appropriate something (as property)
the right to purchase something in advance of others
a prior appropriation of something
"the preemption of bandwidth by commercial interests"
The purchase of something before it is offered for sale to others.