- 大西洋 Dàxīyáng Atlantic Oceanthe Atlantic Ocean
- 北大西洋 Běi Dàxīyáng North Atlantic
- 西洋参 xīyángshēn American ginsengAmerican ginseng (Panax quinquefolius)
- 西洋人 xīyángrén Westerner
- 西洋镜 xīyángjìng peep showan old-fashioned street entertainment where pictures are viewed through a magnifying lens
- 西洋杉 xīyángshān cedar
- 西洋棋 xīyángqí chess
- 西洋菜 xīyángcài watercresswatercress (Nasturtium officinale)
- 大西洋洋中脊 Dàxīyángyángzhōngjǐ Mid-Atlantic RidgeAtlantic mid-ocean ridge
- 中大西洋脊 zhōngdàxīyángjǐ Mid-Atlantic Ridgethe mid-Atlantic ridge
- 北大西洋公约组织 Běi Dàxī Yáng Gōngyuē Zǔzhī NATONorth Atlantic Treaty Organization, NATO
- 大西洋中脊 Dàxīyángzhōngjǐ Mid-Atlantic RidgeAtlantic mid-ocean ridge
- 大西洋国 Dàxīyángguó Portugalhistorical name for Portugal during the Qing dynasty
- 下西洋 xià Xīyáng sail westto sail west from China (used in reference to the 15th century voyages of Zheng He to regions bordering the Indian Ocean)