名詞 decoder:

1. the kind of intellectual who converts messages from a code to plain text
   同義詞：decipherer
2. a machine that converts a coded text into ordinary language

de.cod.er

n.（名詞）
One that decodes.
解碼者
A device that decodes a scrambled electronic signal to make it interpretable.
譯碼器：解除改變過(guò)頻率的電子訊號(hào)，使其變得可解釋的儀器