rezati

1. to cut; to slice
   Mama reže hleb za doručak. — Mom is slicing bread for breakfast.
   Ovaj nož više ne reže dobro. — This knife doesn't cut well anymore.
2. (of branches, vines) to prune; to trim
   Deda svakog proleća reže lozu u vinogradu. — Every spring grandpa prunes the vines in the vineyard.
3. (in wood, stone) to carve; to engrave
   Moj komšija reže figure u drvetu. — My neighbor carves figures out of wood.
4. (of costs, salaries) to cut; to reduce
   Firma opet reže plate radnicima. — The company is cutting workers' wages again.
5. (of pain, wind) to cut; to cause a sharp pain
   Nešto me reže u stomaku od jutros. — I've had a sharp pain in my stomach since this morning.
   Hladan vetar reže lice. — The cold wind cuts into your face.

The perfective depends on the meaning: iseći, preseći, odseći, orezati.