This is the 867th most frequent Serbian word.
мраз
Frost.
In this sentence, 'мраз' refers to the weather phenomenon of frost, signifying cold or icy conditions.
Јутрос је био јак мраз.
There was a heavy frost this morning.
Here, 'мрази' is a verb form derived from 'мраз' that means 'to hate,' showing an emotional context.
Он дуго мрази хладноћу.
He has long hated the cold.
In this sentence, 'мразом' again refers to frost explicitly as a natural element, used in its instrumental case form.