specifično

1. (of a trait, feature) peculiarly; distinctively; characteristically
   Ovaj sir specifično miriše, ali je jako ukusan. — This cheese has a peculiar smell, but it's really tasty.
   To je specifično za ovaj kraj. — That is specific to this region.
2. (this and not something else) specifically
   Zakon se specifično odnosi na mala preduzeća. — The law specifically applies to small businesses.
   Nisam mislio uopšteno, nego specifično na ovaj slučaj. — I didn't mean it in general, but specifically this case.

In the sense 'specifically, concretely' (Specifično, mislim na tvoju poslednju poruku) specifično is a calque of English 'specifically'; it is heard, but the usual word is konkretno. In specifično za nešto — 'characteristic of something' — specifično is normally the neuter form of the adjective specifičan.