from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Informal A grandfather.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. grandfather
from the GNU version of the Collaborative International Dictionary of English
- n. A grandfather.
from The Century Dictionary and Cyclopedia
- n. A colloquial abbreviation of grandpapa.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the father of your father or mother
grand- + pa (Wiktionary)