Englishfor English speakers
ancestor
Noun
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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.
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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.
element
Noun
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An element is one part of something bigger, such as a plan, an engine, or a business.
He's the best salesman on our team, but he's only one element in our success.
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An element is one basic kind of substance, such as iron (Fe) oxygen (O) or sodium (Na).
Water is made up of two elements: Hydrogen and Oxygen.