we are talking about sub return, method return is handled in /type/Mu

doc/Language/control.pod6

@@ -678,7 +678,7 @@ All these forms may produce a return value the same way C<loop> does.
 
 =head1 X<return|control flow>
 
-The routine C<return> will stop execution of a subroutine or method, run all
+The sub C<return> will stop execution of a subroutine or method, run all
 relevant L<phasers|/language/phasers#Block_Phasers> and provide the given
 return value to the caller. The default return value is C<Nil>. If a return
 L<type constraint|/type/Signature#Constraining_Return_Types> is provided it
@@ -691,7 +691,7 @@ L<CONTROL|/language/phasers#CONTROL>.
 
 =head1 X<return-rw|control flow>
 
-The routine C<return> will return values, not containers. Those are immutable
+The sub C<return> will return values, not containers. Those are immutable
 and will lead to runtime errors when attempted to be mutated.
 
     sub s(){ my $a = 41; return $a };