Difference between 404 error and soft 404 error

Hello frnsss I have been looking for the difference between 404 and soft 404 error found in webmaster tool and I found many answers also on the net but I did;t get clearly...Please provide an easy and clear difference...

404 Error-->The page you are trying to view on the website will not available on the server.
Maybe it is removed or moved and URL will not changed correctly.

Soft 404 Error-->It is also same as 404 but in addition to that server will give response code of 200.

The webpage you were trying to reach could not be found on the server. It means the webpage simply does not exist with the URL entered.

Soft code error:- The server should also return a HTTP 404 standard response code. indicates that a website's server could not find the page (URL) that was requested by the user. As a result, the content of the page won't be crawled or indexed by search engines