Definitions
1.NounA small piece of soft, absorbent material, such as gauze, used to clean wounds, apply medicine, or take samples of body fluids. Often attached to a stick or wire to aid access.
2.NounA sample taken with a swab .
3.NounA piece of material used for cleaning or sampling other items like musical instruments or guns.
4.NounA mop, especially on a ship.
5.NounA sailor; a swabby.
6.NounA naval officer's epaulet.
7.VerbTo use a swab on something, or clean something with a swab."swab the deck of a ship"