A private part is any part that would normally be covered by clothing. So Yes is your answer.
Yes
He was rumored to not have a belly button.
The only part on my belly button was the inside my belly button, I used to be scared of needles bit its a Tad not sore.
You can press around it/the belly part and then start to cave in an then grap it
Your navel
The top part unscrews
Because it somewhat resembles a button and it is on your belly.
umbilical region
Out Belly Button
A belly button ring is a body piercing placed in a cauterized area of the belly button.
No, a belly button is a belly button.
yeye
le nombril is the name for the belly button in French.