Welcome to GateWorld Forum! If this is your first visit, we hope you'll sign up and join our Stargate community. If you have questions, start with the FAQ. We've been going strong since 2004, are we are glad you are here.
I guess it IS ok to say someone is from another dimension, because their reality has three dimensions, just like ours, but they are from another reality that has three dimensions, so yeah, I guess it is ok.