em

1. colloq. (em …, em …) not only … but also; both … and
   Em je skupo, em ne valja. — It's not only expensive, it's also no good.
   Em kasniš, em se još i ljutiš! — Not only are you late, you're angry too!

It is usually used in pairs, before each of the two parts; neutral equivalents are i … i … or ne samo … nego i ….