butterfly
蜨 centers on the butterfly, an insect with distinctive wings.
蜨 combines 虫 (insect) with 疌, which likely contributes the sound. The exact historical development of 疌 is uncertain, but the character is used for butterfly.
The insect radical 虫 on the left pairs with 疌, which looks a bit like a butterfly's folded wings. Together they make a butterfly.
For ショウ, imagine a butterfly show where colorful butterflies are displayed: show -> ショウ.
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