around the world

1. Around Earth from east to west, or west to east, thus crossing all meridians.

   He sailed around the world.

   Synonyms: worldwide

2. In a large proportion of Earth; in various parts of Earth.

   Some people go around the world for love / But they may never find what they dream of / What you won't do, do for love / You've tried everything but you don't give up

   1978, Bobby Caldwell, “What You Won't Do For Love”, in Bobby Caldwell

   1 more example

   The great invasion games of basketball, field and ice hockey, lacrosse and the varied football codes seem to provide an immense attraction for all ages, and billions of people around the world play and watch these sports.

   2001, Alan G. Launder, Play Practice: The Games Approach to Teaching and Coaching Sports

plural around the worlds

1. A particular trick move with a yo-yo.

   […] and proceeds to deftly execute an over-the-falls, a cat's cradle and two around-the-worlds

   1970, John Grissim, Country Music: White Man's Blue, page 52

2. hobbiesA specific weightlifting exercise.