higher status vs senior status

higher status and senior status both are nouns.

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

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

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

Other synonyms of higher status include higher rank, seniority.

higher status (noun)	senior status (noun)
higher rank than that of others especially by reason of longer service	higher rank than that of others especially by reason of longer service