How to abbreviate Great-grandmother?

The ways to abbreviate Great-grandmother.

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GGM:
Great-grandmother(Genealogical, Genealogy)
For more, try GREAT-GRANDMOTHER on ALL ACRONYMS DICTIONARY
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APASmart Define. (2017). great-grandmother. Retrieved October 1, 2026, from http://smartdefine.org/great-grandmother/abbreviations/a
ChicagoSmart Define. 2017. "great-grandmother" http://smartdefine.org/great-grandmother/abbreviations/a (accessed October 1, 2026).
HarvardSmart Define 2017, great-grandmother, Smart Define, viewed 1 October, 2026, <http://smartdefine.org/great-grandmother/abbreviations/a>.
MLASmart Define. "great-grandmother" 9 October 2017. Web. 1 October 2026. <http://smartdefine.org/great-grandmother/abbreviations/a>