Your abdomen is the part of your body below your chest where your stomach and intestines are.
e.g. Jennifer was suffering from pains in her abdomen.
e.g. Sarah went into the hospital to undergo tests for a pain in her abdomen.
Your waist is the middle part of your body where it narrows slightly above your hips.
e.g. Karlie wore a wide leather belt around her waist.
Your hips are the two areas at the sides of your body between the tops of your legs and your waist.
e.g. Patricia stood with her hands on her hips.
e.g. These jeans are too tight around the hips.
Your buttocks are the two rounded fleshy parts of your body that you sit on.
e.g. The beating had left red weals on John’s buttocks.
Your limbs are your arms and legs.
e.g. Todd has lost his four limbs in battle.
e.g. The missing limbs did not lessen the quality of his life.