But over the years the cats seemed to segregate themselves into 2 types of talkers: the meowers and the rrreowers. It's a distinct difference between the initial "M" sound as opposed to the initial "R" sound.
Samples, courtesy of Kessels Cat Sounds website:
There is no sound in the following photos, but Tizzy is a Meower.
Sammy (the deaf one), on the other
hand paw is a Rrreower.
And that's all they have to say about that.