Hmm. Around here (middle/south USA), when I hear "tummy," I think of a child or close family member talking about their stomach organ ("My tummy hurts"). An adult would generally say "stomach" instead of "tummy." When I hear "belly," I think of the whole abdomen, including the flesh/fat on the torso. Belly is often used to describe someone's abdomen when it's able to jiggle ("What a cute little belly," probably regarding a small child/infant), protrude out far from the rest of the body (a pregnant belly or a "beer belly"), overweight bellies that stick out or hang ("He needs to go to the gym and work on that belly!"), or other variations. I hope this helps.

There are hundreds of words for various shades of color. If you are not a fashion designer, or an art director, or choosing paint for a room, "violet" and "purple" are about the same. Other somewhat similar colors are "maroon," "plum," "lavender," and "magenta." They are all reddish-blues or bluish-reds. Violet is the traditional name for one of the colors in the spectrum. It is a bright, clear color that is a reddish blue. Purple is a little darker and richer. According to one dictionary, purple is actually between violet and red in hue. It's hard to use words to describe colors. I recommend that you look at these two Wikipedia articles, which include swatches of the color. https://en.wikipedia.org/wiki/Violet_(color) https://en.wikipedia.org/wiki/Purple

The formal medical word is "abdomen." The adjective is "abdominal." "He had abdominal surgery." "Belly," "Stomach," and "Tummy" overlap. "Belly" means the bulging outer part of the body. (Well, mine bulges). It can also mean anything belly-like, such as the bottom part of an airplane ("The plane's wheels could not be lower and the plane made an emergency belly-landing.") "Stomach" is the organ inside the abdomen, where food goes after you swallow it. "Tummy" is baby-talk and an informal word for "stomach." Often, "belly," "stomach," and "tummy" are used to mean the whole general area. For example, pain that is perceived to be in the abdominal area might be called "a belly-ache," "a stomach-ache," or "a belly-ache," and a doctor would write it down as "abdominal pain."

It's not tommy, It's tummy. Belly is that whole thing beneath the chest, while tummy means stomach. Violet and purple are different colors. You should google their images, you'll uderstand. Hope it helps.