사석

Etymology 1
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Noun

 * 1) private occasion; private meeting

Etymology 2
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Noun

 * 1)  alluvial tin
 * 2) areniform tin

Etymology 3
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Noun

 * 1)  sniper's nest

Etymology 4
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Noun

 * 1)  a go stone that is strategically discarded
 * 2) rubble mound

Etymology 5
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Noun

 * 1)  a go stone captured by one's opponent