The ground is solid, the grass is not. A ball resting, rolling, or bouncing on the ground is touching the ground by definition.
The grass is not considered to be part of the ground, it never has been and never will be. I repeat - the ground is defined as being the SOLID surface of the earth. Grass is not solid.
This is getting a bit silly. Your argument just doesn't stand up at all.
it was silly a long time ago..
however i would pose one question, which was asked before.. your at lords, their is an even and thick covering of grass, the ball cannot touch the "ground" because of this covering of grass, joe root plays a cover drive that is fielded at cover, Australia appeal for the catch.. the ball has touched the grass not the ground, by you definition he is out caught.
we all know in this case the ball is deemed to have touched the "ground" even though by dictionary definitions it hasn't.
what has been missed here (and is missing alot from the forum atm) is common sense, we all know when the ball has been grounded whether its hit grass or soil without petty and quite frankly ridiculous discussions about it, bottom line is the grass CAN be part of the ground, there are a few and VERY few instances where it is not