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grandpa

American  
[gran-pah, -paw, grand-, gram-, gram-puh] / ˈgrænˌpɑ, -ˌpɔ, ˈgrænd-, ˈgræm-, ˈgræm pə /

noun

Informal.
  1. grandfather.


grandpa British  
/ ˈɡrænd-, ˈɡræm-, ˈɡrænd-, ˈɡrænpəˌpɑː, ˈɡrænˌpɑː /

noun

  1. informal words for grandfather

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does grandpa mean? Grandpa is an informal word for grandfather—the father of a person’s parent.When a father’s child has their own children, that father becomes a grandpa. The word pa is an informal way to say father.Grandpa is often combined with a name, especially when a person has two grandfathers that they call Grandpa, as in Grandpa Carl andGrandpa Frank. Should grandpa be capitalized?Grandpa should be capitalized when it’s used as a proper name, as in Please tell Grandpa that I miss him. But grandpa does not need to be capitalized when it’s simply used as a way to refer to him, as in Please tell my grandpa that I miss him. Example: It doesn’t matter what you call your grandpa, as long as you call him.

Etymology

Origin of grandpa

First recorded in 1885–90; grand- + pa

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"The world truly lost an icon and I lost my grandpa."

From BBC • Mar. 20, 2026

My grandpa retired at 70 after working as a missionary for most of his life and later at a national laboratory.

From MarketWatch • Feb. 24, 2026

If your grandma discovered grandpa voted differently, it was after knowing he was kind, reliable and funny.

From The Wall Street Journal • Jan. 27, 2026

"My grandpa and my grandpa's grandpa were also craftspeople," Zhang told AFP in his dusty studio.

From Barron's • Jan. 19, 2026

My grandpa hums slightly as he gathers a pile of nuts.

From "Finding Junie Kim" by Ellen Oh