senior

Older; elder: when following a personal name, as John Smith, senior (usually abbreviated Sr. or Sen.), it denotes the older of two persons in one family or community of that name.

2. Older in office or service: as, a senior judge, colonel, etc.

3. Belonging or pertaining to the fourth or last year of the curriculum of an American college, seminary, or other institution: as, the senior class.

noun

A person who is older than another; one more advanced in life; an elder.

noun

One who is older in office or service, or whose first entrance upon such office or service was anterior to that of another.

noun

3. An aged person; one of the older inhabitants.

noun

In the universities of England, one of the older fellows of a college. See seniority, 3.

noun

In the United States, a student in the fourth year of the curriculum in colleges or seminaries; also, one in the last or most advanced year in certain professional schools; by extension, a student in the most advanced class in various institutions.

noun

A person who is older than another; one more advanced in life.

noun

One older in office, or whose entrance upon office was anterior to that of another; one prior in grade.