Dictionary.com
Thesaurus.com

granddaughter

American  
[gran-daw-ter] / ˈgrænˌdɔ tər /

noun

  1. a daughter of one's son or daughter.


granddaughter British  
/ ˈɡrænˌdɔːtə /

noun

  1. a daughter of one's son or daughter

"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

Spelling tips for granddaughter The word granddaughter is hard to spell because it’s a combination of two words, one of which (daughter) has a tricky vowel combination and some silent letters. How to spell granddaughter: First, remember that you should spell granddaughter as one word, without a space or a hyphen, and that you should include two d’s—both the one from the end of grand and the one from the beginning of daughter. Next, remember the vowel combination in daughter is the same as it is in the word taught. If you have a granddaughter, this spelling may be one you’ve taught her!

Etymology

Origin of granddaughter

First recorded in 1605–15; grand- + daughter