foursquare

adj

1. Having four equal sides; square.

   “From the foursquare royal tower on the city's eastern edge to the Dominican monastery of the Blackfriars in the west, its skyline was a forest of spires and belltowers.”

   “Out there in the dark the city looked foursquare and massive.”

2. (broadly)Solid, robust.

   “Standing foursquare in the heart of the town, at the intersection of the two main streets, a "jog" at each street corner left around the market-house a little public square, which at this hour was well occupied by carts and wagons from the country and empty drays awaiting hire […].”

   “It is surprising to find white wine of apparently low acidity keeping well at all. Yet at ten years (a good age for it today) it has a haunting combination of foursquare breadth and depth with some delicate, intriguing, lemony zest.”

   “Another initially foursquare wine that develops lovely fruit in the glass, with a toasty-biscuity finish beginning to build.”

3. Pertaining to a four-square cipher.
4. Pertaining to the International Church of the Foursquare Gospel.

noun

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