What is the meaning of Ancestor?

One from whom a person is descended, whether on the father's or mother's side, at any distance of time; a progenitor; a forefather; a forebear.

An earlier type; a progenitor

One from whom an estate has descended;the correlative of heir.

One who had the same role or function in former times.

A word or phrase which serves as the origin of a term in another language.

To be an ancestor of.

Source: wiktionary.org