preemption vs pre-emption

preemption and pre-emption both are nouns.

Word	Noun	Adjective	Verb	Adverb
preemption	Yes	No	No	No
pre-emption	Yes	No	No	No

As nouns, preemption and pre-emption are synonyms defined as:

As nouns, preemption and pre-emption are synonyms defined as:

preemption and pre-emption: the right to purchase something in advance of others

As nouns, preemption and pre-emption are synonyms defined as:

preemption and pre-emption: the right of a government to seize or appropriate something (as property)

As nouns, preemption and pre-emption are synonyms defined as:

preemption and pre-emption: the judicial principle asserting the supremacy of federal over state legislation on the same subject

preemption (noun)	pre-emption (noun)
a prior appropriation of something	a prior appropriation of something
the right to purchase something in advance of others	the right to purchase something in advance of others
the right of a government to seize or appropriate something (as property)	the right of a government to seize or appropriate something (as property)
the judicial principle asserting the supremacy of federal over state legislation on the same subject	the judicial principle asserting the supremacy of federal over state legislation on the same subject