A pain in your stomach is a bellyache. Don't eat too much cotton candy at the fair, or you'll definitely get a bellyache!

You might also refer to a bellyache as a tummy ache or an upset stomach. Whatever you call it, it's no fun, and it might even cause you to lie in bed and moan a little. As a verb, bellyache means "complain" or "whine." If your brother insists on taking part in a hotdog eating contest, you might be stuck listening to him bellyache about his bellyache later.

Definitions of bellyache
  1. noun
    an ache localized in the stomach or abdominal region
    synonyms: gastralgia, stomach ache, stomachache
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    type of:
    ache, aching
    a dull persistent (usually moderately intense) pain
  2. verb
    synonyms: beef, bitch, crab, gripe, grouse, holler, squawk
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    type of:
    complain, kick, kvetch, plain, quetch, sound off
    express complaints, discontent, displeasure, or unhappiness
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