What does O/S mean in Genealogy?
This page is about the meanings of the acronym/abbreviation/shorthand O/S in the Academic & Science field in general and in the Genealogy terminology in particular.
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What does O/S mean?
- opposite side(Noun)
- A side, party (e.g. a team or armed force) seen as adversary, enemy etc. opposite one (or more) other(s), as in a battle or team competition