noun

• (music) A light, brisk musical movement; a gigue.
• (traditional Irish music and dance) A lively dance in 6/8 (double jig), 9/8 (slip jig) or 12/8 (single jig) time; a tune suitable for such a dance. By extension, a lively traditional tune in any of these time signatures. Unqualified, the term is usually taken to refer to a double (6/8) jig.
  "They danced a jig."
• (traditional English Morris dance) A dance performed by one or sometimes two individual dancers, as opposed to a dance performed by a set or team.
• (fishing) A type of lure consisting of a hook molded into a weight, usually with a bright or colorful body.
  "They were waked out of their bunks one black night by yells of "Squid O!" from Salters, and for an hour and a half every soul aboard hung over his squid-jig—a piece of lead painted red and armed at the lower end with a circle of pins bent backward like half-opened umbrella ribs."

verb

• (fishing) To fish with a jig.
• (mining) To sort or separate, as ore in a jigger or sieve.

noun

• (US, offensive, slang, dated, ethnic slur) A black person.
  "“You got a new jig, huh?” The boy looked out at Jones through his swirls of oiled hair. “What happened to the last one? He die or something?”"

noun

• (World War II era, joint US/RAF) radiotelephony clear-code word for the letter J.