diff --git a/glossary/CoffeeScript.md b/glossary/CoffeeScript.md
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+### CoffeeScript
+
+CoffeeScript is a programming language inspired by Ruby, Python and Haskell that transpiles to JavaScript.
diff --git a/glossary/TypeScript.md b/glossary/TypeScript.md
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+### TypeScript
+
+TypeScript is a superset of JavaScript, adding static typing to the language.
+TypeScript compiles to plain JavaScript.