If we want that a character be interpreted by the client instead of server _________

To ensure that a character is interpreted by the client instead of the server, you need to encode or escape that character. This can typically be achieved by using character entites in HTML or URL encoding in URLs to ensure the character is not processed by the server but is sent as-is to the client, where it is then interpreted.

For example, in HTML, the ampersand (&) is a special character and is used to denote the start of an HTML entity. If you want an ampersand to appear on the webpage (to be interpreted by the browser, thus the client), you would use the HTML entity & in your HTML code.

Hence, the direct answer to your question is not a specific term or a single word but a process: encoding or escaping special characters.