| 礁 | [ ] reef, shoal rock |
| 礁島 | [ daǒ ] reef island |
| 礁岛 | [ daǒ ] reef island |
| 礁湖 | [ hú ] lagoon |
| 礁湖星雲 | [ hú xīng yún ] Lagoon Nebula M8 |
| 礁湖星云 | [ hú xīng yún ] Lagoon Nebula M8 |
| 礁溪 | [ xī ] Jiaoxi or Chiaohsi Township in Yilan County 宜蘭縣|宜兰县[Yi2 lan2 Xian4], Taiwan |
| 礁溪鄉 | [ xī xiāng ] Jiaoxi or Chiaohsi Township in Yilan County 宜蘭縣|宜兰县[Yi2 lan2 Xian4], Taiwan |
| 礁溪乡 | [ xī xiāng ] Jiaoxi or Chiaohsi Township in Yilan County 宜蘭縣|宜兰县[Yi2 lan2 Xian4], Taiwan |
| 礁石 | [ shí ] reef |
| ⇒ 堡礁 | [ baǒ ] barrier reef |
| ⇒ 大堡礁 | [ dà baǒ ] Great Barrier Reef, Queensland, Australia |
| ⇒ 斯卡伯勒礁 | [ sī kǎ bó lè ] Scarborough Shoal (Philippines' name for Huangyan Island) |
| ⇒ 暗礁 | [ àn ] submerged reef (rock) |
| ⇒ 淺礁 | [ qiǎn ] shallow reef, shoal |
| ⇒ 浅礁 | [ qiǎn ] shallow reef, shoal |
| ⇒ 牛軛礁 | [ niú è ] Niu'e Reef, disputed territory in the South China Sea, claimed by China, Vietnam and the Philippines, aka Whitsun Reef or Julian Felipe Reef |
| ⇒ 牛轭礁 | [ niú è ] Niu'e Reef, disputed territory in the South China Sea, claimed by China, Vietnam and the Philippines, aka Whitsun Reef or Julian Felipe Reef |
| ⇒ 珊瑚礁 | [ shān hú ] coral reef |
| ⇒ 環礁 | [ huán ] atoll |
| ⇒ 环礁 | [ huán ] atoll |
| ⇒ 觸礁 | [ chù ] (of a ship) to strike a reef, (fig.) to hit a snag |
| ⇒ 触礁 | [ chù ] (of a ship) to strike a reef, (fig.) to hit a snag |