<p><strong>Noun:</strong></p><ul><li>A person who decodes messages or the like.</li><li>A device for decoding cryptograms, codes, or the like, as an electric or electronic apparatus that transforms arbitrary input signals into letters, words, etc.</li><li>Navigation: an electronic circuit designed to respond only to certain signals and to reject others.</li><li>Computers: a circuit designed to produce a single output when actuated by a certain combination of inputs.</li><li>Television: a box attached to a television set containing circuitry to unscramble encoded signals, as cable-television programs or closed captions, so that the signals can be displayed on the screen.</li></ul><p><strong>End of Response</strong></p>