senior vs senior status

senior and senior status both are nouns.

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

senior (noun)	senior status (noun)
an undergraduate student during the year preceding graduation	higher rank than that of others especially by reason of longer service
a person who is older than you are

senior (adjective)	senior status (adjective)
older; higher in rank; longer in length of tenure or service
used of the fourth and final year in United States high school or college
advanced in years; (`aged' is pronounced as two syllables)