Senior
WordNet
adjective
(1) 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"
(2) Older; higher in rank; longer in length of tenure or service
"Senior officer"
noun
(3) A person who is older than you are
(4) An undergraduate student during the year preceding graduation
WiktionaryText
Etymology
< , comparative form of ; see senate.
Adjective
- Older; superior
- Higher in rank within a publicly traded company or other organization.
- of or pertaining to a student's final academic year at a high school or university.
Noun
- an older person
- four years her senior
- a final-year student at a high school or university.