A person who decodes secret messages / A device that decodes a scrambled electronic signal e.g. of a satellite television signal

plural of decoder

Able to be read using a certain set of reading knowledge. / (information theory) Of a code, having a non-singular extension; being a lossless encoding.

plural of decoding

The condition of being decodable.

Third-person singular simple present indicative form of decode

plural of decode

simple past tense and past participle of decode

(cryptography) A product of decoding / (computing) Output from a program or device used to interpret communication protocols

To convert from an encrypted form to plain text. / To figure out something difficult to interpret.