The weight or entire body of the wine simply means how heavy it feels in your mouth when you drink it.
The good news you can easily determine the alcohol involving rose wine as it is always indicated within label. Red wine glasses have larger bowls so may get onto your nose down in it. https://www.openlearning.com/u/michaelnicholson-sdl9w0/blog/GiTinRuHennessyMiNht2023VmBoChtLngNhtTiThNgiTrngVitNam