Dresses with a draping element around the tummy area often work. Asymmetrical dresses work well too as they draw attention away from the belly and create a vertical line. Dresses that don't cling and which also have patterns are also great to hide the tummy area.
How can I hide my tummy in a dress?
Underwear that's too small or big can create bulges or folds that you can see through your dress. You can also wear high-waisted underwear to tuck your belly in a bit. Or, wear shapewear, like control-top hose or a girdle, under your dress to smooth out your body shape.