tummy
noun /ˈtʌmi/
  /ˈtʌmi/
 (plural tummies)
 (informal) used especially by children or when speaking to children- the stomach or the area around the stomach- Mum, my tummy hurts.
- to have (a) tummy ache
- a tummy bug/upset (= an illness when you feel sick or vomit)
- There’s a baby growing in your mummy’s tummy.
- cosmetic surgery like facelifts and tummy tucks
 Oxford Collocations Dictionaryadjective- empty
- full
- upset
- …
 - rumble
- ache
 - ache
- bug
- trouble
- …
 - in the/your tummy
 Word Originmid 19th cent.: child's pronunciation of stomach.