To decode a message is to

Decoding refers to the process by which a receiver interprets and makes sense of a message.

When a sender encodes a message, they translate their ideas into a form that can be communicated, such as spoken or written words.

The receiver then decodes this message by interpreting its meaning based on their understanding and context.

This process is essential for effective communication, ensuring that the intended message is accurately received and understood by the recipient.