+**Similarity** describes the degree to which two things share common qualities or characteristics. It is a fundamental concept in [Comparison](/wiki/comparison) and [Pattern Recognition](/wiki/pattern_recognition), allowing us to group and understand the world around us. Perceiving what is alike helps establish relationships and make sense of complexity.
+## See also
+- [Difference](/wiki/difference)
+- [Analogy](/wiki/analogy)
+- [Clustering](/wiki/clustering)
... 1 more lines