| 海胆 | hǎi dǎn | sea urchin |
| 海兴 | Hǎi xīng | Haixing county in Cangzhou 沧州, Hebei |
| 海兴县 | Hǎi xīng xiàn | Haixing county in Cangzhou 沧州, Hebei |
| 海航 | Hǎi háng | Hainan Airlines |
| 海苔 | hǎi tái | nori |
| 海草 | hǎi cǎo | seagrass |
| 海葵 | hǎi kuí | sea anemone |
| 海蛞蝓 | hǎi kuò yú | sea slug |
| 海蛤蝓 | hǎi gé yú | sea slug |
| 海蚀 | hǎi shí | coastal erosion; marine abrasion |
| 海螵蛸 | hǎi piāo xiāo | cuttlebone |
| 海西 | Hǎi xī | Haixi Mongol and Tibetan autonomous prefecture (Tibetan: Mtsho-nub Sog-rigs dang Bod-rigs rang-skyong-khul) in Qinghai |
| 海西州 | Hǎi xī zhōu | Haixi Mongol and Tibetan autonomous prefecture (Tibetan: Mtsho-nub Sog-rigs dang Bod-rigs rang-skyong-khul) in Qinghai |
海西蒙古族藏族自
治州 | Hǎi xī Měng gǔ zú Zàng zú zì zhì zhōu | Haixi Mongol and Tibetan autonomous prefecture (Tibetan: Mtsho-nub Sog-rigs dang Bod-rigs rang-skyong-khul) in Qinghai |
| 海角 | hǎi jiǎo | cape |
| 海角天涯 | hǎi jiǎo tiān yá | The Ends of the Earth (idiom) |
| 海誓山盟 | hǎi shì shān méng | to pledge undying love (idiom); oath of eternal love; to swear by all the Gods |
| 海丰 | Hǎi fēng | Haifeng county in Shanwei 汕尾, Guangdong |
| 海丰县 | Hǎi fēng xiàn | Haifeng county in Shanwei 汕尾, Guangdong |
| 海豚 | hǎi tún | dolphin |
| 海豚座 | hǎi tún zuò | Delphinus (constellation) |
| 海象 | hǎi xiàng | walrus |
| 海豹 | hǎi bào | seal |
| 海豹科 | hǎi bào kē | Phocidae, family within Carnivora including seal |
| 海豹部队 | hǎi bào bù duì | United States Navy SEALs |
| 海贼 | hǎi zéi | a pirate |
| 海贼王 | Hǎi zéi wáng | One Piece (manga and anime) |
| 海军上校 | hǎi jūn shàng xiào | captain (= UK and US Navy equivalent) |
| 海军中校 | hǎi jūn zhōng xiào | commander (= UK and US Navy equivalent) |
| 海军大校 | hǎi jūn dà xiào | commodore (= US Navy equivalent) |
| 海军官 | hǎi jūn guān | naval officer |
| 海军少校 | hǎi jūn shǎo xiào | lieutenant commander (= UK and US Navy equivalent) |
| 海军总司令 | hǎi jūn zǒng sī lìng | admiral |
| 海军蓝 | hǎi jūn lán | navy blue |
| 海迪 | Hǎi dí | Heidi |
| 海运费 | hǎi yùn fèi | shipping; sea transport |
| 海运费率 | hǎi yùn fèi lǜ | shipping rate |
| 海部俊树 | Hǎi bù Jùn shù | KAIFU Toshiki (1931-), Japanese politician, prime minister 1989-1991 |
| 海量 | hǎi liàng | huge volume |
| 海错 | hǎi cuò | seafood delicacy |
| 海门 | Hǎi mén | Haimen county level city in Nantong 南通, Jiangsu |
| 海门市 | Hǎi mén shì | Haimen county level city in Nantong 南通, Jiangsu |
| 海阔天空 | hǎi kuò tiān kōng | wide sea and sky (idiom); boundless open vistas; the whole wide world; chatting about everything under the sun |
| 海关官员 | hǎi guān guān yuán | customs officer |
| 海关总署 | hǎi guān zǒng shǔ | General Administration of Customs (GAC) |
| 海关部门 | hǎi guān bù mén | customs section |
| 海陵 | Hǎi líng | Hailing district of Taizhou city 泰州市, Jiangsu |
| 海陵区 | Hǎi líng qū | Hailing district of Taizhou city 泰州市, Jiangsu |
| 海陆 | hǎi lù | sea and land; ocean and continent; army and navy |
| 海陆煲 | hǎi lù bāo | sea and land hotpot (Jiangsu specialty) |
