the GNU version of the Collaborative International Dictionary of English
n. A son's or daughter's child; a child in the second degree of descent.
The Century Dictionary and Cyclopedia
n. A son's or daughter's child; a child or offspring in the second degree of descent: sometimes used loosely to include a degree more remote: correlative to grandparent.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a child of your son or daughter
Word Usage
"Johnston says Palin lost his vote (CNN) – The father of Sarah Palin's grandchild is continuing to speculate on why the Alaska governor [...] [...]"