diff --git a/specification/README.md b/specification/README.md
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--- a/specification/README.md
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@@ -9,6 +9,9 @@ tags:
  - Difficulty-Beginner
 ---
 
+## Also known as
+Filter, Criteria
+
 ## Intent
 Specification pattern separates the statement of how to match a
 candidate, from the candidate object that it is matched against. As well as its