achieve a grand slam

verb phrase

1. To win all the major championships or titles in a particular sport or competition.

   B2

   transitive

   • "Winning all four major tennis tournaments in a single calendar year is considered achieving a grand slam."B2
   • "The golfer achieved a career grand slam by winning all four major tournaments."B2

2. To accomplish a major success in multiple areas simultaneously.

   B2

   informal

   • "She achieved a grand slam by winning the championship, getting a promotion, and publishing her book all in the same year."B2