Simple English definitions for legal terms
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Term: O.S.
Definition: O.S. stands for Old Style.
Old Style refers to a style of writing numbers and letters that was used in the past. It is different from the modern style that we use today.
O.S.
Abbreviation for "Old Style."
O.S. stands for "Old Style" and is used to indicate a date that was recorded using the Julian calendar, which was replaced by the Gregorian calendar in most countries in the 16th century. The examples show how O.S. is used to indicate a date that was recorded using the Julian calendar.