Wish I could say the word but it be spoiling.
Tbh to be specific you could only find the true password to stop the ending by using one of the passwords that stops the tragic outcome after you discover the body.
Then in the neighborhood scene one of the words Roswal says will be the password (idk if being quiet or revealing changes the outcome since I found it first try, doesn’t mean I input it first nope I wrote all the words that seemed out of place for him to say and used each one until I got the last one correct.)