What does OS stand for?

The list of OS abbreviation meanings.

Stands For|797Abbreviated As|0Related|0

797 entries under topic. ×

1
Old Style(Genealogical, Genealogy)
1
Old Style calendar(Genealogical, Genealogy)
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For more, try OS on ALL ACRONYMS DICTIONARY
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APASmart Define. (2018). os. Retrieved September 24, 2026, from http://smartdefine.org/os/abbreviations/f/Genealogical
ChicagoSmart Define. 2018. "os" http://smartdefine.org/os/abbreviations/f/Genealogical (accessed September 24, 2026).
HarvardSmart Define 2018, os, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/os/abbreviations/f/Genealogical>.
MLASmart Define. "os" 9 February 2018. Web. 24 September 2026. <http://smartdefine.org/os/abbreviations/f/Genealogical>