The crossword solution for the term 'belly, more formally' is 'ABDOMEN' with seven letters. The ABDOMEN is the part of the body located between the chest and the pelvis. It contains many organs, including the stomach, small intestine, large intestine, liver, gallbladder, pancreas, and spleen. It also contains the bladder and reproductive organs in both sexes. The ABDOMEN is a major site of digestion and absorption of food.