higher status vs seniority

higher status and seniority both are nouns.

Word	Noun	Adjective	Verb	Adverb
higher status	Yes	No	No	No
seniority	Yes	No	No	No

As nouns, higher status and seniority are synonyms defined as:

higher status and seniority: higher rank than that of others especially by reason of longer service

Other synonyms of higher status include higher rank, senior status.

higher status (noun)	seniority (noun)
higher rank than that of others especially by reason of longer service	the property of being long-lived
	higher rank than that of others especially by reason of longer service