WordWeb Online

1. An undergraduate student during the year preceding graduation
    
2. A person who is older than you are
   - elder, oldie [informal]

1. Older; higher in rank; longer in length of tenure or service
   "senior officer"
    
2. Used of the fourth and final year in United States high school or college
   "the senior prom";
   - fourth-year
    
3. (of a person) advanced in years, old
   "senior citizen";
   - aged[2], elderly, older

Derived forms: seniors

See also: elder, higher rank, higher status, higher-ranking, last, major [Brit], old, older, precedential, ranking, senior status, seniority, sr., superior

Type of: adult, grownup, undergrad, undergraduate

Antonym: junior

Encyclopedia: Senior, Peter