senior

adj. older, elder; having a higher rank; elderly, aged; pertaining to students in their final year at a school or university

n. student in his final year at a school or university; person of higher rank; older person, elder; senior citizen

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Noun
1. an undergraduate student during the year preceding graduation
(hypernym) undergraduate, undergrad
2. a person who is older than you are
(synonym) elder
(hypernym) adult, grownup
(hyponym) dean, doyen

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Adjective
1. older; higher in rank; longer in length of tenure or service; "senior officer"
(antonym) junior
(similar) elder, older, sr.
(see-also) old
(attribute) seniority, senior status, higher status, higher rank
2. used of the fourth and final year in United States high school or college; "the senior prom"
(synonym) senior(a), fourth-year
(similar) last
3. advanced in years; (`aged' is pronounced as two syllables); "aged members of the society"; "elderly residents could remember the construction of the first skyscraper"; "senior citizen"
(synonym) aged, elderly, older
(similar) old

nm. senior, older person, senior citizen, person of retirement age

adj. senior, older, elder, having a higher rank