spolja

1. from outside
   Spolja se čula muzika. — Music could be heard from outside.
   Ne očekujemo pomoć spolja. — We don't expect help from outside.
2. (of appearance) on the outside; outwardly
   Kuća je spolja stara, ali unutra je renovirana. — The house is old on the outside, but renovated inside.
   Spolja deluje mirno, ali je nervozan. — Outwardly he seems calm, but he's nervous.

The Croatian equivalent is izvana; in Serbia spolja is used.