Bachelor

Webster's Dictionary

(1): (n.) A man of any age who has not been married.

(2): (n.) A kind of bass, an edible fresh-water fish (Pomoxys annularis) of the southern United States.

(3): (n.) An unmarried woman.

(4): (n.) A person who has taken the first or lowest degree in the liberal arts, or in some branch of science, at a college or university; as, a bachelor of arts.

(5): (n.) A knight who had no standard of his own, but fought under the standard of another in the field; often, a young knight.

(6): (n.) In the companies of London tradesmen, one not yet admitted to wear the livery; a junior member.

The Nuttall Encyclopedia

A name given to one who has achieved the first grade in any discipline.