from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A son of one's son or daughter.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A son of one's child.
from the GNU version of the Collaborative International Dictionary of English
- n. A son's or daughter's son.
from The Century Dictionary and Cyclopedia
- n. The son or male offspring of a son or daughter: correlative to grandfather and grandmother
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a male grandchild
From grand- + son (Wiktionary)