great grandparent

1. 1.

   a parent of your grandparent

   Broaderforebear

   Narrowergreat grandmothergreat grandfather

Questions about great grandparent

What does great grandparent mean?

great grandparent means "a parent of your grandparent".

Is great grandparent a common word?

great grandparent is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.