Definitions from Wiktionary (WS)

▸ noun:  Initialism of watersports (sexual practice) [(informal, euphemistic) Any sexual activity involving urine or urination; pissplay.]
▸ noun:  (Internet, Web) Initialism of Web service. [(Internet, Web) A software system designed to support interoperable machine-to-machine interaction over a network.]
▸ noun:  (knitting) Initialism of wrong side. [(textiles, sewing) The side of a fabric, often with a less visible color or pattern, that is not intended to be seen on a finished project.]
▸ noun:  (law, Scotland) Initialism of writer to the signet.
▸ noun:  (music) Initialism of wavetable synthesis; a method used to generate sound by a digital music synthesizer.
▸ noun:  (baseball) Initialism of World Series, a best of seven game series played annually to determine the championship of United States professional baseball. [(US, baseball) The best-of-seven game series played annually in late October-early November to determine the year's championship of professional baseball in the United States and Canada, played between two teams, one each in the National League and the American League.]
▸ noun:  Initialism of Western Samoa. [(historical) The former name of Samoa, from 1914 to 1997.]
▸ noun:  (US) Initialism of Washington State (State of Washington)

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