The Japanese word for rock is
岩石

Japanese Definition

Translations for rock and their definitions

石
1. n. a stone
2. n. (slang electronics) a transistor
3. n. a traditional Japanese unit of volume:
4. n.    for grains of rice; one koku is equal to approximately 180 litres
5. n.    (by extension historical) for land of famous daimyo or samurai; one koku is also approximately 180 litres
6. n.    for 和船; one koku is equal to 10 cubic (ll, ja, 尺, shaku) or approximately 0.278 cubic metres
7. n. a unit of quantity for 鮭 and 鱒; one koku is equal to 40 salmon or 60 trout
8. counter. (counter for gemstones used as bearings in watches and other devices)
9. counter. (slang electronics) (counter for transistors, especially discrete ones)
六%石ラジオ - six-transistor radio
10. n. (Same as above)
11. affix. stone
12. affix. needle made of stone
13. affix. go stone
14. affix. something solid but worthless

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