\Spin"ster\, n. [Spin + -ster.]
1. A woman who spins, or whose occupation is to spin.
         She spake to spinster to spin it out. --Piers
                                               Plowman.
         The spinsters and the knitters in the sun. --Shak.
2. A man who spins. [Obs.] --Shak.
3. (Law) An unmarried or single woman; -- used in legal
   proceedings as a title, or addition to the surname.
         If a gentlewoman be termed a spinster, she may abate
         the writ.                             --Coke.
4. A woman of evil life and character; -- so called from
   being forced to spin in a house of correction. [Obs.]