four·square 
(fôrskwâr)
(fôrskwâr)adj.
1. Having four equal sides and four right angles; square.
2. Marked by firm, unwavering conviction or expression; forthright: a foursquare refusal to yield.
3. Of or being a style of American residential architecture popular especially in the early 20th century, usually having two and a half stories and characterized by a square boxy shape and a four-room floor plan.
adv.
In a forthright manner; squarely.
n.
A child's game in which each of four players stands in one of four boxes drawn on the ground in a two-by-two grid and must bounce a ball into another player's box without holding the ball or stepping out of bounds.
four′squarely adv.
- Blackburn
- blackcap
- black cherry
- blackcock
- black cod
- black cohosh
- black coral
- Black Country
- black cow
- black crappie
- black cumin
- black currant
- blackdamp
- Black Death
- black diamond
- black duck
- black dwarf
- black economy
- blacken
- blackener
- Black English
- Black English Vernacular
- black eye
- black-eyed pea
- black-eyed Susan