noun

• A person, especially a man, who is socially regarded as able to marry, but has not yet.
• The first or lowest academical degree conferred by universities and colleges; a bachelor's degree.
• Someone who has achieved a bachelor's degree.
• (Canada) A bachelor apartment.
• (obsolete) An unmarried woman.
• (obsolete) A knight who had no standard of his own, but fought under the standard of another in the field.
• (obsolete) Among London tradesmen, a junior member not yet admitted to wear the livery.
• A kind of bass, an edible freshwater fish (Pomoxis annularis) of the southern United States.