Sen·ior, n.
 1. A person who is older than another; one more advanced in life.
 2. One older in office, or whose entrance upon office was anterior to that of another; one prior in grade.
 3. An aged person; an older.
 Each village senior paused to scan,
 And speak the lovely caravan.   --Emerson.
 4. One in the fourth or final year of his collegiate course at an American college; -- originally called senior sophister; also, one in the last year of the course at a professional schools or at a seminary.

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