Englishfor English speakers
ancestor
Noun
—
An ancestor is a person from whom one is descended refShorter Oxford English Dictionary, p63; The Pocket Oxford English Dictionary, 9th ed, ed. Oxford; New York: Oxford University Press, 2002, p.&;nbsp;29). Usually it refers to a remote person, rather than the immediate parents or grandparents (Concise Oxford Dictionary, p45, gives "esp. remote")/ref. A very similar word is forebear.
We get our customs from our ancestors.
—
Entire species of plants or animals may have ancestor species from which they evolution.
It is thought that an extinct group of apes was the ancestor of the human race.
category
Noun
—
A category is a group of people or things that are the same in some way.
The music business tries to put music into various categories, such as rock, pop, jazz, etc.