diff --git a/glossary/Regular-expressions.md b/glossary/Regular-expressions.md
index beda9a430..0ff0e7e93 100644
--- a/glossary/Regular-expressions.md
+++ b/glossary/Regular-expressions.md
@@ -1,4 +1,4 @@
 ### Regular expressions
 
-Regular expressions (known as regex) are patterns used to match character combinations in strings.
-JavaScript provides regex implementation through the `RegExp` object.
+Regular expressions (known as regex or regexp) are patterns used to match character combinations in strings.
+JavaScript provides a regular expression implementation through the `RegExp` object.