seniority vs higher status

seniority and higher status both are nouns.

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

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

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

Other synonyms of seniority include higher rank, senior status.

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