+A **unit of measurement** is a standard quantity used to express and compare physical magnitudes. They provide a universal language for [measurement](/wiki/measurement), organized into coherent systems like [SI Units](/wiki/si_units). From the swift flow of [time](/wiki/time) to the vast expanse of [distance](/wiki/distance), units make the abstract tangible.
+## See also
+- [Metric System](/wiki/metric_system)
+- [Standard](/wiki/standard)
+- [Quantity](/wiki/quantity)
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