No biggie, its all good.
I think when it comes to explaining things I always try the visual approach of explaining, because this is a deaf world and I am really visual type person. Not the politically correct type.
When I thought of silent, it makes no sense to say that to anyone who could be profound deaf, so instead when I thought of the word, invisible, it wasn't the "not able to be seen" or "deception to the eye". I was more thinking in line with the other meaning of "not prominent or readily noticeable".
