cover something that is not just a bracket

Author: coke

doc/Language/glossary.pod6

@@ -262,7 +262,7 @@ a L<Pair|/type/Pair> object.  The two most common forms are:
     :a<4>          # Same as "a" => "4", same as Pair.new("a", val("4"))
 
 This is also known as the adverbial pair form.  Note: when the part after
-the colon and before the brackets is not a legal identifier, other
+the colon and before the balanced delimiters is not a legal identifier, other
 semantics apply, not all of which produce Pair objects.
 
 Two other common forms are: