Our use of the word "ancestor" on this blog (and my other blogs) will be used as a reference to someone from whom a person descends. This does not usually includes aunts, uncles, cousins, etc. unless there is some sort of double kinship.
I realize that others may have a more broad view of this word. This definition parallels those of several online dictionaries and is consistent with how I have used the word since I started my genealogy research.