navel
nounUK /ˈneɪ.vəl/
US /ˈneɪ.vəl/
The small round mark on your tummy where your belly button is.
The baby giggled when her mother gently tickled her navel.
OTHER MEANINGS
2. The central point or middle part of something.
The town lies at the navel of the valley.
3. The point on a fruit, such as an orange, opposite the stem.
He peeled the orange starting from its navel.
4. A type of sweet orange with a small navel-like mark at one end.
She packed a navel orange in her lunch bag.