bachelor

noun

1. A person, especially a man, who is socially regarded as able to marry, but has not yet.

   “As merry and mellow an old bachelor as ever followed a hound.”

   “I shall die a bachelor.”

   “I knew from the beginning that I would have to move fast to keep Minnie to myself. Kansas City was full of rakehell bachelors, all of whom I had to outcourt.”

2. The first or lowest academic degree conferred by colleges and universities; a bachelor's degree.
3. Someone who has achieved a bachelor's degree.
4. (Canada)A bachelor apartment.
5. (obsolete)An unmarried woman.

   “A bachelor still, by keeping of your portion : And keep you not alone without a husband”

6. (obsolete)A knight who had no standard of his own, but fought under the standard of another in the field.
7. (obsolete)Among London tradesmen, a junior member not yet admitted to wear the livery.
8. A kind of bass, an edible freshwater fish (Pomoxis annularis) of the southern United States.