preemption vs judicial doctrine

preemption and judicial doctrine both are nouns.

Word	Noun	Adjective	Verb	Adverb
preemption	Yes	No	No	No
judicial doctrine	Yes	No	No	No

As nouns, judicial doctrine is a hypernym of preemption; that is, judicial doctrine is a word with a broader meaning than preemption:

preemption: the judicial principle asserting the supremacy of federal over state legislation on the same subject
judicial doctrine: (law) a principle underlying the formulation of jurisprudence

Other hypernyms of preemption include judicial principle, legal principle.

preemption (noun)	judicial doctrine (noun)
a prior appropriation of something	(law) a principle underlying the formulation of jurisprudence
the right to purchase something in advance of others
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