Synonyms for Preemption:

n.

arrogation, seizure, usurpation, give, assumption, appropriation. preemption (noun)
pre-emption.
usurpation (noun)
seizure, assumption, arrogation, appropriation.

Other synonyms:

arrogation. usurpation. assumption, appropriation, seizure. Other relevant words:
arrogation, seizure, usurpation, pre-emption, assumption, appropriation.