仕掛

しかけ · shikake · JLPT N1 · noun

device

🪤 仕 (set up) + 掛 (hang on) = something set up in advance: a device or trick

Shikake comes from 仕掛ける, to set up or lay in place beforehand. A trap set up in advance is a trick, and a built-in working part is a mechanism.

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