var

1. dated regional (of weather) heat
   Po ovom varu ni stoka ne izlazi iz hlada. — In this heat even the livestock won't leave the shade.
2. (in welding) weld
   Var na ogradi je popucao posle zime. — The weld on the fence cracked after the winter.

In the sense 'heat' the word is dated and found mostly in folk speech and older texts; modern Serbian usually says vrućina or žega. The living sense is 'weld'.