a unit of Chinese currency equal to one-hundredth of a yuan, or a Vietnamese unit of value.
From Chinese 'háo', a measure unit. The character originally represented the finest hair, then evolved to mean 'tenth part,' then 'hundredth part.'
The hao is so small it's rarely used in modern commerce—Chinese currency has practically abandoned it, much like how the US penny is almost worthless today, showing how inflation erases tiny denominations!
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