| 海陆煲 | hǎi lù bāo | sea and land hotpot (Jiangsu specialty) |
| 海陆空 | hǎi lù kòng | sea land air (transport, or military operations) |
| 海陆军 | hǎi lù jūn | navy and army; military force |
| 海阳市 | Hǎi yáng shì | Haiyang county level city in Yantai 烟台, Shandong |
| 海隅 | hǎi yú | coastal area |
| 海难 | hǎi nàn | perils of the sea |
| 海青天 | Hǎi qīng tiān | popular nickname of Hai Rui 海瑞 (1514-1587), Ming politician, famous for honesty and integrity |
| 海鞘 | hǎi qiào | Ascidiacea; sea squirt |
| 海顿 | Hǎi dùn | Haydn (name); Franz Joseph Haydn (1732-1809), Austrian classical composer |
| 海马回 | hǎi mǎ huí | hippocampus |
| 海鲜 | hǎi xiān | seafood |
| 海鲜酱 | Hǎi xiān jiàng | hoisin sauce (barbecue sauce); seafood sauce |
| 海鲤 | hǎi lǐ | sea bream |
| 海鸟 | hǎi niǎo | seabird |
| 海鹫 | hǎi jiù | sea eagle; CL:只 |
| 海盐县 | Hǎi yán xiàn | Haiyan county in Jiaxing 嘉兴, Zhejiang |
| 淮海战役 | Huái hǎi zhàn yì | Huaihai Campaign (Nov 1948-May 1949) |
| 深海烟囱 | shēn hǎi yān cōng | deep-sea vent; black smoker |
| 渊海 | yuān hǎi | abyss of ocean; vast and profound (idiom) |
| 溟海 | míng hǎi | a dark sea |
| 沧海桑田 | cāng hǎi sāng tián | lit. the blue sea turned into mulberry fields (idiom); fig. the transformations of the world |
| 沧海遗珠 | cāng hǎi yí zhū | undiscovered talent (idiom) |
| 澄海 | Chéng hǎi | Sea of serenity (Mare Serenitatis, on the moon); Chenghai district of Shantou city 汕头市, Guangdong |
| 澄海区 | Chéng hǎi qū | Chenghai district of Shantou city 汕头市, Guangdong |
| 滨海新区 | Bīn hǎi xīn qū | Binhai New District, subprovincial district of Tianjin |
| 滨海县 | Bīn hǎi xiàn | Binhai county in Yancheng 盐城, Jiangsu |
| 滨海边疆区 | Bīn hǎi biān jiāng qū | Primorsky Krai (Russian province around Vladivostok 符拉迪沃斯托克) |
| 浏海 | liú hǎi | see 刘海 |
| 濒海 | bīn hǎi | coastal; bordering the sea |
| 火海刀山 | huǒ hǎi dāo shān | lit. seas of flames and mountains of daggers; fig. extreme dangers (idiom) |
| 乌梁海 | Wū liáng hǎi | Mongol surname |
| 乌海 | Wū hǎi | Wuhait or Wuhai prefecture level city in Inner Mongolia |
| 乌海市 | Wū hǎi Shì | Wuhait or Wuhai prefecture-level city in Inner Mongolia |
| 烟海 | yān hǎi | the vast ocean |
| 牛海绵状脑病 | niú hǎi mián zhuàng nǎo bìng | bovine spongiform encephalopathy, BSE; mad cow disease |
| 特提斯海 | Tè tí sī hǎi | Thetys (pre-Cambrian ocean) |
| 珠海市 | Zhū hǎi shì | Zhuhai prefecture level city in Guangdong province 广东省 in south China |
| 琉球海 | Liú qiú hǎi | Ryūkyū sea; refers to the Ryūkyū Islands 琉球群岛 stretching from Japan to Taiwan |
| 瑶海 | Yáo hǎi | Yaohai district of Hefei city 合肥市, Anhui |
| 瑶海区 | Yáo hǎi qū | Yaohai district of Hefei city 合肥市, Anhui |
| 环渤海湾地区 | huán Bó hǎi wān dì qū | Bohai Economic Circle (economic region including Beijing, Tianjin, Hebei, Liaoning and Shandong) |
| 琼州海峡 | Qióng zhōu hǎi xiá | Qiongzhou strait (between Hainan Island and Mainland China) |
| 琼海 | Qióng hǎi | Qionghai City, Hainan |
| 琼海市 | Qióng hǎi Shì | Qionghai City, Hainan |
| 瓶鼻海豚 | píng bí hǎi tún | bottle-nosed dolphin (Tursiops truncatus) |
| 瓯海 | Ōu hǎi | Ouhai district of Wenzhou city 温州市, Zhejiang |
| 瓯海区 | Ōu hǎi qū | Ouhai district of Wenzhou city 温州市, Zhejiang |
| 留海 | liú hǎi | see 刘海 |
| 白令海 | Bái lìng Hǎi | Bering Sea |
| 白令海峡 | Bái lìng hǎi xiá | the Bering straits (between Siberia and Alaska) |
