Definition of "grandpa" []

• Informal A grandfather. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Yes | No | Report from codyboyd wrote 8 weeks 2 days ago just boil, then put it in bleach. my grandpa is a taxidermist."
• "My Pop — that's what I call my grandpa — was a mailman."
• "What if you learn that your grandpa is a phsyco after 30 years?"