Noun
-
a person who is older than you are
-
an undergraduate student during the year preceding graduation
Adjective
-
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"
-
used of the fourth and final year in United States high school or college
"the senior prom"
- fourth year -
older
higher in rank
longer in length of tenure or service
"senior officer"