名詞 foursquare:

1. (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon
   同義詞：square

形容詞 foursquare:

1. characterized by firm and unwavering conviction

副詞 foursquare:

1. in a square position
2. with firmness and conviction; without compromise
   同義詞：squarely, straightforwardly

four.square

adj.（形容詞）
Having four equal sides and four right angles; square.
方形的：有四個等邊和等角的；正方的
Marked by firm, unwavering conviction or expression; forthright:
堅定不移的：穩(wěn)固、毫不動搖的信念或表現(xiàn)；堅決明確的：
例句：
a foursquare refusal to yield.
堅定不移地拒絕屈服

adv.（副詞）
In a forthright manner; squarely.
堅定地；穩(wěn)固地

【引伸】
four.square.ly
adv.（副詞）