senior

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
    

• older; higher in rank; longer in length of tenure or service
  • senior officer
    

Noun

• a person who is older than you are

• an undergraduate student during the year preceding graduation

Related words

• Synonyms: 
  aged , elderly , older , senior(a) , fourth-year , elder