noun
bellybutton
noun
1
The navel; the small scar left where the umbilical cord was attached.
"The baby giggled when she tickled his bellybutton."
How to Use Bellybutton
Learner’s notesIn plain EnglishThe everyday word for the navel.
When to use it
Informal and child-friendly; "navel" is the more clinical term.
Easily confused with
Word Forms
bellybuttons plural
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The baby giggled when she tickled his _____.
Etymology
A simple, informal compound of "belly" and "button," describing the navel’s button-like appearance.