noun, plural grand·chil·dren.

a child of one's son or daughter.

Origin of grandchild

First recorded in 1580–90; grand- + child Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for grandchild


noun plural -children (-ˌtʃɪldrən)

the son or daughter of one's child
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

Word Origin and History for grandchild

1580s, graundchilde, from grand (adj.) + child. Related: Grandchildren.

Online Etymology Dictionary, © 2010 Douglas Harper