Meaning
The kanji 穀 (koku) primarily means grain, cereals, or crops. It refers to various edible seeds from grasses, such as rice, wheat, millet, and barley, which form the staple diet in many cultures. Essentially, 穀 describes agricultural produce that can be harvested and stored.
Its origin clearly illustrates this meaning. 穀 is a phono-semantic compound, combining two main components:
- 禾 (nogihen): This radical on the left side literally depicts a stalk of grain with a hanging ear. This visual element unmistakably links the kanji to agriculture, plants, and particularly cereals. It provides the semantic clue for the kanji's meaning.
- 谷 (tani): The component on the right side originally meant 'valley' or 'gorge'. Here, however, it primarily functions as a phonetic component, giving the kanji its 'koku' (コク) sound. While mostly phonetic, some etymological theories suggest a secondary semantic link. Perhaps it implies grain grown in valleys, or the sound of husking grain. Another idea connects it to grain being 'shelled' or 'separated' from its husk, as 'valley' can sometimes be associated with a 'gap' or 'division'. Ultimately, its main role is phonetic.
Thus, 穀 visually represents 'grain' (禾) and sounds like 'koku' (谷), forming a comprehensive symbol for various cultivated grains. 穀 has 14 strokes and is a Jōyō kanji, typically learned at a secondary school level. Mastering it is essential for advanced Japanese literacy, especially for those studying for the JLPT N1.
Readings
On'yomi (音読み) — Chinese-derived readings
The most common on'yomi reading for 穀 is コク (koku).
コク (koku): You'll almost exclusively encounter this reading in compound words, especially those related to grain, agriculture, and food. It's a fundamental reading for this kanji.
穀物 (kokumotsu) — grain, cereals
五穀 (gokoku) — the five grains (traditionally rice, wheat, millet, foxtail millet, and beans)
穀倉 (kokusō) — granary, grainery
Kun'yomi (訓読み) — Native Japanese readings
穀 doesn't have a widely recognized native Japanese (kun'yomi) reading when used to mean 'grain' or 'cereals' as a standalone word or in typical compounds. While its component 谷 (valley) has the kun'yomi たに (tani), this reading doesn't apply to 穀 itself for its primary meaning. Consequently, in modern Japanese contexts, 穀 is almost always seen with its on'yomi reading コク, reflecting its specific use in compounds for agricultural products.
Common Words & Compounds
穀 appears in many important compound words, particularly those related to food, agriculture, and daily life. Understanding these compounds is key to grasping how 穀 is used.
Agricultural and Food Products
- 穀物 (kokumotsu) — grain, cereals. This is a broad term for any type of grain, like rice, wheat, or corn.
- 五穀 (gokoku) — the five grains. A traditional term for the main staple grains, often appearing in cultural or historical contexts.
- 雑穀 (zakkoku) — miscellaneous grains, various cereals. It often refers to less common grains such as millet, quinoa, or buckwheat.
- 米穀 (beikoku) — rice and other grains, or specifically rice. It's frequently used in the context of the rice industry.
Storage and Processing
- 穀倉 (kokusō) — granary, grainery. A building specifically for storing threshed grain.
- 穀倉地帯 (kokusō chitai) — granary region, breadbasket. An area famous for its abundant grain production.
- 脱穀 (dakkoku) — threshing, hulling. The process of separating grain from its stalk.
Nutritional and Health Contexts
- 穀類 (kokurui) — cereals, grains (as a food category). You'll often see this on nutrition labels or in dietary discussions.
- 粗穀 (sokoku) — coarse grain. Refers to unrefined or unprocessed grains.
Economic and Industrial Terms
- 穀価 (kokka) — grain price. The market price of cereals.
- 穀作 (kokusaku) — grain crop, grain farming. The cultivation of grains.
Example Sentences
日本の主食は米という穀物です。
Nihon no shushoku wa kome to iu kokumotsu desu.
Japan's staple food is a grain called rice.
世界中でさまざまな種類の穀物が栽培されています。
Sekaijū de samazamana shurui no kokumotsu ga saibai sareteimasu.
Various types of grains are cultivated around the world.
この地域は豊かな穀倉地帯として知られています。
Kono chiiki wa yutakana kokusō chitai toshite shirareteimasu.
This region is known as a rich granary area.
健康のために毎日五穀をバランスよく摂ることが大切です。
Kenkō no tame ni mainichi gokoku o baransu yoku toru koto ga taisetsu desu.
It is important to consume the five grains in a balanced way daily for health.
収穫された穀物は、巨大な穀倉に貯蔵されます。
Shūkaku sareta kokumotsu wa, kyodai na kokusō ni chozō saremasu.
Harvested grains are stored in a huge granary.
古い時代には、税金として米穀が徴収されました。
Furui jidai ni wa, zeikin toshite beikoku ga chōshū saremashita.
In ancient times, rice and grains were collected as taxes.
脱穀機を使って、効率的に穀物を処理します。
Dakkokuki o tsukatte, kōritsuteki ni kokumotsu o shori shimasu.
We use a threshing machine to process grains efficiently.
朝食に雑穀パンを食べると、栄養バランスが良くなります。
Chōshoku ni zakkoku pan o taberu to, eiyō baransu ga yoku narimasu.
Eating whole grain bread for breakfast improves nutritional balance.
Memory Tip
To remember 穀, focus on its two main components. On the left is 禾 (nogihen), clearly depicting a stalk of grain or a rice plant. This is your visual cue for 'grain.' On the right is 谷 (tani), meaning 'valley.' Picture a lush valley teeming with grain stalks (禾). Imagine a farmer looking down into a valley filled with golden grain, ready for harvest. This 'valley of grain' image helps you remember that 穀 refers to 穀物 (grain/cereals). The pronunciation コク (koku) can also be linked to the 谷 component, as 'koku' sounds sometimes derive from 'tani' in other kanji. Alternatively, you could imagine the 'sound' of grains being collected, or even associate it with 'coke' (koku) if that helps you recall the sound!