+A **unit system** is an organized collection of [Units](/wiki/unit) used to measure and express physical quantities. These systems provide a consistent framework for scientific and engineering communication, with the [SI Units](/wiki/si_units) serving as the predominant global standard.
+## See also
+- [Measurement](/wiki/measurement)
+- [Physical Quantity](/wiki/physical_quantity)
+- [Standard](/wiki/standard)
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