This is the 776th most frequent Croatian word.
razina
Level; degree; layer; standard.
In this sentence, 'razina' denotes the degree or extent of his proficiency in English.
Njegova razina znanja engleskog jezika je impresivna.
His level of English knowledge is impressive.
Here, 'razina' refers to the vertical measurement of the water in the river, indicating its height or elevation.
Razina vode u rijeci je porasla nakon kiše.
The level of water in the river has risen after the rain.
Here, 'razina' is used metaphorically to describe the degree of awareness among people regarding a particular subject.