privezati

1. (to something) to tie; to fasten
   Privezao je psa za ogradu ispred prodavnice. — He tied the dog to the fence outside the shop.
   Ribari su privezali čamac uz obalu. — The fishermen moored the boat to the shore.
2. (privezati se) to buckle up; to fasten one's seatbelt
   Molimo putnike da se privežu. — Passengers are asked to fasten their seatbelts.

What something is tied to is expressed with za + accusative (privezati za drvo).