điệp

Etymology 1
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The sense of "scallop" is due to the visual similarity between scallop's valves and butterfly's wings when spread.

Noun

 * 1)  butterfly
 * 2) scallop bivalve mollusc
 * 3) scallop powder
 * 1) scallop powder

Etymology 2
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Verb

 * 1) to repeat; to reduplicate

Etymology 4
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Noun

 * 1)  official message; official letter