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tummy

American  
[tuhm-ee] / ˈtʌm i /

noun

Informal.
tummies plural
  1. stomach.

    The baby had a pain in his tummy.


tummy British  
/ ˈtʌmɪ /

noun

  1. an informal or childish word for stomach

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of tummy

First recorded in 1865–70; nursery alteration of stomach

Explanation

Tummy is an informal shorthand for stomach. This word is mainly used for talking to little kids: "Aw, do you have a tummy ache?" You wouldn't use the word tummy in your human anatomy class, but you might use it when you babysit your two-year-old niece. Infants sometimes have "tummy time," a short period when they are turned onto their stomachs so they can develop their neck and shoulder muscles. Tummy has been in use since the 19th century, and experts guess that it comes from a childish pronunciation of stomach.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The medical term for my ailment is an asymmetrical gluteal cleft, though requests to fix it are far less common than those to eliminate cellulite, flatten the tummy, or augment the breasts.

From Slate • Feb. 22, 2026

“But the difference between Stage 3 and Stage 4 is it’s not in my lungs. It’s in my tummy area but not more upwards.”

From Los Angeles Times • Feb. 16, 2026

"My favourite book makes my tummy funny, because I laugh," she says.

From BBC • Dec. 27, 2025

The most common are for the face, tummy, thighs and breasts.

From BBC • Sep. 20, 2025

Sir Fig Newton was curled on the floor by Dad’s chair, soft wheezing snores accompanying his rising and falling tummy.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas

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