The word 'tummy' means your belly or stomach. It's a fun and friendly way to talk about that part of your body.
You say 'tummy' like this: 'tum-ee'. It rhymes with 'funny'!
The word 'tummy' comes from the word 'tum', which is a playful way to say stomach. It has been used for a long time to make talking about our bellies more fun!