diff --git a/reference/array/functions/array-diff.xml b/reference/array/functions/array-diff.xml
index dbe4499614..4b691cf60c 100644
--- a/reference/array/functions/array-diff.xml
+++ b/reference/array/functions/array-diff.xml
@@ -98,7 +98,7 @@ Array
   <note>
    <para>
     Two elements are considered equal if and only if
-    <literal>(string) $elem1 === (string) $elem2</literal>. In words:
+    <literal>(string) $elem1 === (string) $elem2</literal>. In other words:
     when the string representation is the same.
     <!-- TODO: example of it... -->
    </para>