How to Say Water in Chinese (水, shuǐ)

水 began as a drawing of a river: a channel down the middle with shorter strokes on either side standing for moving water. The modern character still keeps that shape — a central vertical stroke with strokes branching away from it. It is one of the oldest characters in the system, and it is also one of the most useful, because it appears both as a word in its own right and as a building block inside hundreds of others.

When 水 sits on the left of another character it is squeezed into three dots, 氵, usually called the water radical. 河 (hé) is a river, 海 (hǎi) is the sea, 洗 (xǐ) is to wash, 酒 (jiǔ) is alcohol, 汤 (tāng) is soup. All of them are liquids or actions involving liquid. That makes 氵 one of the few radicals worth learning early: when you see the three dots you can usually guess the general area of meaning even if you cannot read the character.

As a standalone word, 水 is completely normal in speech. 我要水 (wǒ yào shuǐ) means "I want water" and needs no measure word when you are not counting anything. The measure word only appears once you say how much, which is the subject of the next section.

A third tone in Mandarin is a dipping tone. Your voice starts in the lower-middle of its range, falls to the bottom, and comes back up. In isolation, and at the end of a phrase, it gets the full dip. In the middle of a fast sentence it is often cut short — the voice drops and never comes back up — which is why the same word can sound different in two recordings of the same speaker.

The spelling is the part that misleads English speakers. shuǐ is written sh plus ui, but that ui is not the "oo-ee" of the English word "fluid". In this syllable it is closer to the vowel of "way". So shuǐ sounds roughly like "shway", with the pitch falling and then rising inside that one syllable.

Two wrong versions are common. The first is flat: shuī, a high level tone with no movement at all, which is what happens when you ignore tone entirely. The second is worse: shuì, a fourth tone that falls sharply from the top. 睡 (shuì) means "to sleep", so saying 水 in a falling tone can sound as if you are announcing that you are going to bed. The fix is not volume. It is the shape of the pitch.

Chinese nouns do not take a number directly. Between the number and the noun you need a measure word, and which measure word you use depends on the shape of the thing, the container it comes in, or the category it belongs to. For water the natural choices are 杯 (bēi, cup or glass), 瓶 (píng, bottle), 滴 (dī, drop) and 点 (diǎn, a little).

So a glass of water is 一杯水 (yì bēi shuǐ), a bottle of water is 一瓶水 (yì píng shuǐ), and a bottle of mineral water is 一瓶矿泉水 (yì píng kuàngquánshuǐ). The order is fixed: number, measure word, noun. You cannot put 水 first, and you cannot drop the measure word once a number is present.

The generic measure word 个 (ge) is the one beginners overuse, because it is the default for people and for many objects. 一个水 is not idiomatic. 杯 and 瓶 are not decoration: they tell the listener how much and in what container, and they are the difference between a glass and a bottle. The same two measure words carry other drinks as well — 一杯咖啡 (yì bēi kāfēi, a coffee), 一杯茶 (yì bēi chá, a tea), 一瓶啤酒 (yì píng píjiǔ, a bottle of beer).

一 (yī) is first tone when you say the digit on its own, when you count, or when it works as an ordinal. In front of a measure word it changes according to the tone that follows, and the rule has two halves that are easy to remember once you have heard them side by side.

Before a fourth tone, 一 becomes second tone: 一个 (yí ge), 一份 (yí fèn), 一块 (yí kuài). Before a first, second or third tone, 一 becomes fourth tone: 一杯 (yì bēi, because bēi is first tone), 一瓶 (yì píng, because píng is second tone), 一碗 (yì wǎn, because wǎn is third tone).

None of this changes the character, and none of it changes the meaning. It is a pronunciation rule, not a spelling rule. Dictionaries often list 一 as yī and leave the sandhi to the reader; textbooks and this page write the tone you actually say, because that is the form you need to copy.

• Before a first, second or third tone, 一 is yì: 一杯 yì bēi, 一瓶 yì píng, 一碗 yì wǎn.
• Before a fourth tone, 一 is yí: 一个 yí ge, 一份 yí fèn, 一块 yí kuài.
• As a digit or an ordinal, 一 stays yī: 第一 dì yī, "first".
• For "two" in front of a measure word, use 两 (liǎng), not 二: 两杯水 liǎng bēi shuǐ, "two glasses of water".

热水 (rè shuǐ) is hot water in the ordinary sense — from a kettle, a thermos, or a restaurant kitchen. 温水 (wēn shuǐ) is warm, closer to body temperature, the temperature many people drink at home without thinking about it. 冰水 (bīng shuǐ) is ice water, and it is a real word, not an import: you can order it and you will be understood.

开水 (kāi shuǐ) is different in kind rather than degree. It means water that has been boiled, and the defining fact is the boiling, not the heat. 开水 can be scalding from the kettle or cool in a jug, and it is still 开水. 白开水 (báikāishuǐ) is plain boiled water with nothing added — no tea leaves, no sugar. 凉白开 (liángbáikāi) is the northern colloquial name for boiled water left to cool, the drink that sits in a kettle on the kitchen counter all day.

The distinctions matter the moment you open your mouth. 我要热水 gets you hot water. 我要一杯开水 gets you water that has just boiled and may be too hot to drink. 我要一杯温水 gets you something in between, which is what a lot of people actually want with a meal.

If you sit down in a Chinese restaurant and ask for water, the default is a glass of hot water, or a pot of tea. Ice water is not the neutral request that it is in the United States. This is one of the small culture shocks that catches visitors in their first week, and it is worth understanding rather than fighting.

The habit is usually explained with traditional ideas about digestion — cold drinks are said to be hard on the stomach — and that explanation is repeated often enough that many people believe it. The practical reason is simpler: warm water is what most households drink, so it is what a restaurant serves without being asked. The same reflex explains the thermos on office desks and the kettle in hotel rooms.

For a learner, the useful conclusion is that 热水 is completely safe to ask for. Say 服务员，来一杯热水 (fúwùyuán, lái yì bēi rè shuǐ) — "waitress, a glass of hot water" — and nobody will find it strange. If you do want ice, ask 可以加冰吗 (kěyǐ jiā bīng ma, "can you add ice") or 我要冰水 (wǒ yào bīng shuǐ). You will get it. You are simply requesting the less common option, and it helps to know that is what you are doing.

矿泉水 (kuàngquánshuǐ) is mineral water, bottled from a spring and sold everywhere from supermarkets to train trolleys. 纯净水 (chúnjìngshuǐ) is purified water — treated to remove minerals and contaminants — and it is the usual content of the large returnable jugs delivered to homes and offices. Both come sealed and ready to drink, and both are inexpensive enough that visitors stop checking the price after a day.

自来水 (zìláishuǐ) is tap water. In most of the country it is boiled before drinking rather than drunk straight, which is why the electric kettle is standard equipment in apartments and hotel rooms. 烧水 (shāo shuǐ) means to boil water, and 水开了 (shuǐ kāi le) means the water has come to a boil — a sentence you will hear from the kitchen far more often than you will read it in a textbook.

水果 (shuǐguǒ) is fruit, not "water fruit". The 水 here points at juiciness — the water in the fruit — and the word has been fixed for so long that no speaker hears the components separately. Written shuǐguǒ, it is spoken with the first syllable raised, because two third tones in a row force the first one up.

水平 (shuǐpíng) is level or standard, from the image of a water level settling flat. 他的中文水平很高 (tā de Zhōngwén shuǐpíng hěn gāo) means his Chinese is at a high level. 水手 (shuǐshǒu) is a sailor — literally a "hand of the water". 水货 (shuǐhuò) is goods sold outside official channels, the image being merchandise that came in by sea rather than through the front door.

The compounds keep going, and most of them are not guessable from the parts. 香水 (xiāngshuǐ) is perfume, literally "fragrant water". 口水 (kǒushuǐ) is saliva. 汗水 (hànshuǐ) is sweat. 水电 (shuǐdiàn) is water and electricity, the utilities on a bill. And 水瓶 (shuǐpíng), a water bottle, has exactly the same pinyin as 水平 — written Chinese separates them, speech does not, and context does all the work.

These are the errors that survive after the basics are in place, because each one comes from carrying an English habit into Chinese rather than from laziness.

• Reading shuǐ as shuì. The falling tone turns water into sleep, and the mistake is common enough that native speakers hear it as a slip of the tongue rather than as a wrong word.
• Saying 一个水. 个 is the generic measure word and it does not fit a liquid you are measuring by container. Use 一杯 or 一瓶.
• Hearing 水果 as "water fruit". It means fruit, and the 水 is about juice, not about a glass of water.
• Reading 水手 as "water hand" and getting stuck. It means sailor, and the components will not lead you there.
• Avoiding 热水 because it sounds odd in English. Hot water is the normal drink, not a medical remedy, and asking for it is unremarkable.
• Using 水 as the verb "to water". Watering plants is 浇水 (jiāo shuǐ), with 浇 carrying the action; 水 alone cannot do that job.

水 is short, common, and easy to miss. In a video it turns up inside longer phrases — 多喝热水 (duō hē rè shuǐ, "drink more hot water"), 矿泉水, 水果 — and because it is only one syllable, a speaker who is talking quickly can swallow the tone entirely. The syllable survives; the dip does not.

That is the specific problem this site exists for: turning Chinese speech in a video into timed text with pinyin on every character, so a word you only half-heard can be checked against the written form. 水 is a good example of why that helps. Once it is written down you can see the tone mark, and the tone mark is the part your ear missed.