• Great-grandchild

    Full definition of great-grandchild

    Noun

    1. The son or daughter of one's grandchild.

    Usage notes

    Additional instances of "great-" can be prepended to the term, each indicating one further generation of descent. For large numbers of generations a number can be substituted, for example, "four-greats grandchild" or "four-times-great-grandchild".

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