four-square

/F AO1 R S K W EH0 R/
noun
  1. 1

    A sport played by four players where players have to hit a ball into other people's squares, and attempt to make a return hit.

noun
  1. 1

    A four-square cipher

Source: https://en.wiktionary.org/wiki/four%20square, https://en.wiktionary.org/wiki/four-square, https://en.wiktionary.org/wiki/foursquare