foursquare

Short definition from Wiktionary

Adjective

1. 1
   Having four equal sides; square.
2. 2
   Solid, robust.
3. 3
   Pertaining to a four-square cipher.
4. 4
   Pertaining to the International Church of the Foursquare Gospel.

Noun

1. 1
   Alternative form of four square.
2. 2
   A four-square cipher.
3. 3
   A boxy style of domestic architecture with four rooms to a floor, one of which is usually a stair hall.