[Don't worry, Jean is just defensive of his sensitive ego, and he hates feeling like an idiot. But here he is, wide-eyed at things that his own world might contain, when there are others who have known so much more.]
What do you mean "dimensions"? [The only definitions he's familiar with are the ones that deal in either measurements or spatial awareness.]
voice;
What do you mean "dimensions"? [The only definitions he's familiar with are the ones that deal in either measurements or spatial awareness.]