(hǎi): sea

(hǎi) is a Chinese character meaning “sea.” Classified as HSK Level 3 (HSK 3.0 Standard, CLEC 2022), it is composed of (semantic) and (phonetic). It ranks #189 in character frequency (SUBTLEX-CH corpus).

Etymologically derived, water. Its radical form (water) appears in many related characters such as (shuǐ, water), (hàn, Han ethnic group), (, steam).

Native pronunciation

Definitions

  1. sea

Etymology & Origin

pictophoneticwater

Decomposition: ⿰氵每 (layout: left-right)

Stroke Order

1
2
3
4
5
6
7
8
9
10

Practice writing with real-time feedback — trace each stroke in the correct order and build muscle memory in the HanziFeed app.

Words & Compounds

HSK Vocabulary with

WordPinyinMeaningHSK
nounhǎi àncoastal6
nounhǎi yángocean4
nounhǎi wàioverseas5
nounhǎi guāncustoms (i.e. border crossing inspection)5
nounhǎi xiānseafood5
nounhǎi miànthe surface of the sea6
nounhǎi yùsea area6
nounhǎi báheight above sea level6
沿nounyán hǎicoastal6
rén shān rén hǎi(idiom) multitude6
hǎi nèi wàidomestic and international6

Common Compounds

WordPinyinMeaning
hǎi jūnnavy
hǎi dàopirate
dà hǎisea
hǎi biāncoast
hǎi bàoposter
hǎi dǐseabed
hǎi lǐnautical mile
hǎi líbeaver
hǎi làngsea wave
hǎi guīturtle
chū hǎito go out to sea
hǎi bào(zoology) seal
hǎi bīnshore
hǎi dìHaiti
hǎi gǎngseaport
100
Total compounds
78
As first character
22
As last character
0
As middle character

appears in 100 compound words: 78 as the first character, 22 as the last, and 0 in a middle position. Compound statistics computed from SUBTLEX-CH and HSK 3.0 vocabulary data.

Strongest Collocations

Characters that most frequently co-occur with in natural Chinese text, ranked by NPMI (Normalized Pointwise Mutual Information) — a statistical measure of association strength.

0.724542,730 co-occurrences
àn
0.592259,440 co-occurrences
yáng
0.551225,108 co-occurrences
shàng
0.5471,103,808 co-occurrences
沿yán
0.544178,416 co-occurrences
tún
0.52323,040 co-occurrences
xiá
0.51736,116 co-occurrences
bīn
0.51657,115 co-occurrences
tān
0.49430,302 co-occurrences
gāo
0.493528,348 co-occurrences

Idioms & Chengyu (57)

Ālābó HǎiHSK 7+

Arabian Sea

BālúnzhīhǎiHSK 7+

Barents Sea (a sea)

Bāshì HǎixiáHSK 7+

Bashi Channel

Báilìng HǎixiáHSK 7+

Bering Strait (a strait)

běi hǎi gōng yuánHSK 3+

Beihai Park, in Beijing to the northwest of the Forbidden City

phrase
bì hǎi qīng tiānHSK 7+

green sea, blue sky (idiom); sea and sky merge in one shade; loneliness of faithful widow

phrase
cānghǎisāngtiánHSK 7+

time brings drastic changes to the world; the vicissitudes of life

phrase
cānghǎiyízhūHSK 7+

a person with talent or something valuable, but is neglected by the society

phrase
céngjīngcānghǎiHSK 7+

been there, done that

phrase
dàhǎilāozhēnHSK 7+

to look for a needle in a haystack

phrase
dǎo hǎi fān jiāngHSK 4+

see 翻江倒海[fan1 jiang1 dao3 hai3]

phrase
Duìmǎ HǎixiáHSK 7+

Tsushima Strait; Eastern Channel (a channel of the Korea Strait, to the east and southeast of Tsushima Island)

Showing 12 of 57 idioms containing .

Example Sentences

AI-Generated

这个港口城市以鲜闻名,每天都有大量的渔船从上归来。

Zhè gè gǎngkǒu chéngshì yǐ hǎixiān wénmíng, měitiān dōu yǒu dàliàng de yúchuán cóng hǎishang guīlái.

This port city is famous for its seafood, and every day large numbers of fishing boats return from the sea.

百度新闻Feb 2026

排山倒 扑面而来!六百只宋代瓷碗在这叠成墙

pái shān dǎo hǎi pū miàn ér lái ! liù bǎi zhī sòng dài cí wǎn zài zhè dié chéng qiáng

Overwhelming and coming! Six hundred Song Dynasty porcelain bowls are stacked on this wall

百度新闻Feb 2026

「春节采」今年春节怎么过

chūn jié hǎi cǎi jīn nián chūn jié zěn má guò

"How to spend the Spring Festival this year?

百度新闻Feb 2026

被抓现行!菲律宾警在南投放不明物体

bèi zhuā xiàn háng ! 菲 lǜ bīn hǎi jǐng zài nán hǎi tóu fàng bù míng wù tī

Caught in the act! Philippine Maritime Police Drop Unidentified Objects in South China Sea

百度新闻Feb 2026

一路走来,到了春节!上静安祝您龙马精神、马到成功..

yī lù zǒu lái , dào le chūn jié ! shǎng hǎi jìng ān zhù nín lóng mǎ jīng shén mǎ dào chéng gōng . .

All the way to Chinese New Year! Shanghai Jing An wishes you the best of luck and success...

百度新闻Feb 2026

暖意融融 走进上机场建设者小镇

nuǎn yì róng róng zǒu jìn shǎng hǎi jī chǎng jiàn shè zhě xiǎo zhèn

Warmth and Hospitality: A Visit to the Shanghai Airport Construction Workers' Village

Tatoeba

你来上多少时间了?

Nǐ lái Shànghǎi duōshao shíjiān le?

For how long are you in Shanghai?

Tatoeba

滩上你到底愿意去吗?

Hǎitān shàng nǐ dàodǐ yuànyì qù ma?

Are you willing to go to the beach?

Tatoeba

从上坐火车到郑州需几个小时?

Cóng Shànghǎi zuò huǒchē dào Zhèngzhōu xū jǐge xiǎoshí?

How long would a train from Shanghai to Zhengzhou take?

Tatoeba

有什么不如北京的方面吗?

Shànghǎi yǒu shénme bù rú Běijīng de fāngmiàn ma?

Are there any aspects of Shanghai that are not as good as those of Beijing?

Character Family

Homophones — Characters pronounced hǎi

Frequently Asked Questions

What does 海 (hǎi) mean in Chinese?
海 (hǎi) primarily means "sea." It is classified as HSK Level 3, making it a beginner-level character. It ranks #189 in character frequency.
What's the difference between 海 and 悔?
海 (hǎi) and 悔 (huǐ) are often confused. confusable. The key distinguishing feature: 氵 vs 忄 (same 每 component).
How many strokes does 海 have?
海 is written with 10 strokes. The correct stroke order matters for recognition and handwriting speed — practice with the animated guide above to build proper technique.
What is the radical of 海?
The radical associated with 海 is 氵 (water). This radical appears in many characters related to water.
What are the components of 海?
海 is composed of: 氵 (semantic), 每 (phonetic). Its IDS decomposition is ⿰氵每 with a left-right layout. Understanding the components helps with both memorization and recognizing related characters.
What are common words containing 海?
Common words with 海 include: 海军 (hǎi jūn, "navy"); 海盗 (hǎi dào, "pirate"); 海岸 (hǎi àn, "coastal"); 大海 (dà hǎi, "sea"); 海洋 (hǎi yáng, "ocean"). There are over 100 compound words containing this character.
What characters sound the same as 海 (hǎi)?
Several characters share the pronunciation hǎi: 咳 (sound of sighing), 还 (still, return), 孩 ((bound form) child), 骇 (to frighten), and 1 more. Context and tones help distinguish between them in speech and writing.
Is 海 the same in simplified and traditional Chinese?
Yes, 海 is written the same way in both simplified and traditional Chinese.

Practice writing with real-time feedback

Trace stroke sequences, hear native pronunciation, and build lasting retention with spaced repetition in the HanziFeed app.

Character data sourced from Unihan (Unicode Consortium), SUBTLEX-CH frequency corpus (Cai & Brysbaert, 2010), and Make Me a Hanzi (stroke data). Collocation strength measured via NPMI (Normalized Pointwise Mutual Information). Verified by the HanziFeed linguistics team.

HSK classification follows the HSK 3.0 Standard (Center for Language Education and Cooperation, CLEC, 2022 revision). Idiom data from Wiktionary (CC BY-SA 3.0).

Data last verified: March 2026.