n. the countries of (originally) Europe and (now including) North America and South America
n. the cardinal compass point that is a 270 degrees
n. the region of the United States lying to the west of the Mississippi River
n. the direction corresponding to the westward cardinal compass point
n. 西方, 西部
a. 西方的, 向西的
adv. 向西, 自西方, 在西方