Meaning
The N1 kanji 槽 (pronounced ソウ or ふね) primarily denotes 'tub,' 'vat,' 'tank,' 'trough,' or 'cistern.' It refers to a container, often large and open, typically used for holding liquids or other materials, particularly in industrial or agricultural settings. Historically, these vessels were often crafted from wood, and the kanji's structure clearly reflects this origin and purpose.
Composed of two main components, 槽 offers an insightful visual breakdown. On the left is the radical 木 (ki), signifying 'wood' or 'tree.' This radical immediately hints at the traditional construction material of such vessels; many ancient tubs and vats were indeed carved from logs or built from wooden planks. On the right side is the phonetic component 曹 (ソウ), which provides the on'yomi reading of the character. Although 曹 can mean 'administrative official' or 'class,' here it primarily serves as a phonetic component, guiding the on'yomi reading rather than contributing a direct semantic meaning related to a container.
Thus, 槽 effectively combines 'wood' with a phonetic element, conceptually representing a 'wooden vessel' or, by extension, any 'tub' or 'tank.' Its visual form directly connects to its core meaning as a container, especially one traditionally made of wood. This N1 kanji has 15 strokes and is considered an advanced character, typically encountered in higher education or specialized fields beyond standard school grades.
Readings
On'yomi (音読み) — Chinese-derived readings
The primary on'yomi (Chinese-derived reading) for 槽 is ソウ. This is the most common reading, appearing in most compound words. It reflects the kanji's historical introduction from China and its phonetic component 曹. In modern Japanese, especially in technical or formal contexts, 槽 is almost invariably pronounced ソウ.
- 水槽 (suisō) — aquarium, fish tank, water tank. This is a very common application, referring to a tank specifically for water, often seen in homes or public spaces.
- 浴槽 (yokusō) — bathtub. This specifically refers to the tub used for bathing.
- 酒槽 (sakesō) — sake brewing vat. A specialized vat used in the process of making sake.
Mastering the ソウ reading is key to understanding a wide range of container-related terms, from domestic items like bathtubs to industrial equipment and scientific apparatus. Its consistent use generally makes it straightforward to apply once the core meaning is understood.
Kun'yomi (訓読み) — Native Japanese readings
The native Japanese reading (kun'yomi) for 槽 is ふね. However, this reading is significantly less common in modern usage compared to the on'yomi ソウ. When read as ふね, 槽 typically refers to a specific type of wooden vessel, trough, or tub, especially in historical contexts or specialized fields such as traditional craftsmanship or agriculture. It can sometimes even denote a boat-shaped trough or a boat itself, highlighting a conceptual overlap with 船 (boat), though 槽 specifically emphasizes the container aspect.
- 酒槽 (sakefune) — a sake pressing vat. This refers specifically to the large wooden trough used to press sake lees, a traditional term in sake brewing. This is a much more specialized term compared to the more general 酒槽.
Given its limited usage, when you encounter 槽, it's generally safest to assume the ソウ reading. Only a context that clearly indicates a traditional or highly specific application would suggest using ふね. The ふね reading functions more as a historical or technical term than a common everyday one.
Common Words & Compounds
The kanji 槽 forms part of many essential compound words in Japanese, particularly those related to containers for liquids, processing, and various types of apparatus. These compounds span domestic, industrial, and scientific applications, reflecting the versatile meaning of 'tub,' 'vat,' or 'tank.'
General Containers: These compounds refer to various types of tanks for storage.
水槽 (suisō) — water tank, aquarium, fish tank. A container for holding water, often seen in homes or laboratories.
貯水槽 (chosuisō) — water storage tank, reservoir tank. A large tank specifically for storing water.
油槽 (yusō) — oil tank. A tank for storing oil.
Domestic & Personal Use: These relate to household items.
浴槽 (yokusō) — bathtub. The main tub component of a bath.
洗濯槽 (sentakusō) — washing machine tub/drum. The inner tub of a washing machine where clothes are cleaned.
洗浄槽 (senjōsō) — washing/cleaning tank. A tank used for washing or cleaning purposes.
Industrial & Scientific: This category includes specialized containers for various processes.
発酵槽 (hakkōsō) — fermentation tank/vat. A specialized container used for fermentation processes in brewing, food production, etc.
冷却槽 (reikyaku-sō) — cooling tank/vat. A tank designed for cooling liquids or other substances.
蒸留槽 (jōryūsō) — distillation column/still. A vat or column used for the process of distillation.
電解槽 (denkaisō) — electrolytic cell/tank. A tank used for electrolysis.
反応槽 (hannōsō) — reaction tank/vessel. A tank where chemical reactions take place.
Biological & Agricultural: These compounds pertain to cultivation and rearing.
飼育槽 (shiikusō) — breeding tank/vat. A tank used for raising or cultivating animals or plants, e.g., an aquarium for fish.
As these examples demonstrate, 槽 is a highly versatile kanji, integral to describing a wide array of containers across various domains. Recognizing its core meaning of 'tub' or 'tank' is vital for comprehending its role in complex Japanese terminology.
Example Sentences
熱帯魚を飼うために、新しい水槽を購入しました。
Nettaigyo o kau tame ni, atarashii suisō o kōnyū shimashita.
I bought a new aquarium to keep tropical fish.
浴槽に浸かって、一日の疲れを癒します。
Yokusō ni tsukatte, ichinichi no tsukare o iyashimasu.
I soak in the bathtub to relieve the day's fatigue.
工場では、複数の大型の貯水槽が設置されています。
Kōjō de wa, fukusū no ōgata no chosuisō ga setchi sarete imasu.
Several large water storage tanks are installed at the factory.
洗濯機の槽に水がたまるまで、しばらくお待ちください。
Sentakuki no sō ni mizu ga tamaru made, shibaraku omachi kudasai.
Please wait a moment until the washing machine tub fills with water.
化学実験では、様々な反応槽が用いられます。
Kagaku jikken de wa, samazama na hannōsō ga mochiiraremasu.
Various reaction tanks are used in chemical experiments.
日本酒の仕込みには、大きな発酵槽が不可欠です。
Nihonshu no shikomi ni wa, ōkina hakkōsō ga fukaketsu desu.
Large fermentation tanks are indispensable for brewing sake.
この設備には、複数の冷却槽が備えられています。
Kono setsubi ni wa, fukusū no reikyaku-sō ga sonaerarete imasu.
This equipment is provided with multiple cooling tanks.
魚の養殖には、適切な環境を整えた飼育槽が必要です。
Sakana no yōshoku ni wa, tekisetsu na kankyō o totonoeta shiikusō ga hitsuyō desu.
For fish farming, breeding tanks with proper environments are necessary.
古いお屋敷の裏庭には、雨水を貯えるための石造りの槽がありました。
Furui oyashiki no uraniwa ni wa, amamizu o takuwaeru tame no sekizōri no sō ga arimashita.
In the backyard of the old mansion, there was a stone tub for collecting rainwater.
Memory Tip
To effectively remember 槽, visualize its components. The left side, 木 (ki), means 'wood' or 'tree,' immediately suggesting the container's material. The right side, 曹 (ソウ), primarily guides the pronunciation. While its original meaning involves 'administrative official' or 'class,' you can loosely associate it with a 'gathering' or 'group.' Imagine a group of officials gathering around a large wooden tub or vat. Alternatively, consider a 'tree' (木) processed into a 'vat' (槽). The phonetic component 曹 can also evoke the idea of 'sound' (as some kanji with 曹 relate to sound or speaking). So, picture 'a wooden (木) container for liquid, from which sounds (曹) might be heard'—perhaps the gurgle of liquid or the bubbling of fermentation. This dual approach helps link both the material and the phonetic element to the core concept of a tub or tank.