insides
Insides (noun) means the internal organs of the body, especially the stomach and intestines. Example: “The roller coaster made my insides churn.”
How to use insides
Learner’s notesIn plain EnglishAn informal word for your internal organs, especially your stomach and gut.
Casual/informal — "internal organs" is the neutral term for formal writing.
Fill the gap
Can you complete this real example?
The roller coaster made my _____ churn.