The central part or point of anything; the middle.
(Biology) A small opening or depression similar to a navel, as the hollow at the base of the shell of some gastropod mollusks, one of the openings in the shaft of a feather, or the hilum of a seed.
A central part; a focal point.
a scar where the umbilical cord was attached
Find another word for belly-button. In this page you can discover 5 synonyms, antonyms, idiomatic expressions, and related words for belly-button, like: navel, umbilicus, bellybutton, omphalos and omphalus.