This is the 383rd most frequent Serbian word.
јак
Strong.
Here, 'јак' describes physical strength or robustness of a person.
Он је јак човек.
He is a strong man.
Here, 'јак' metaphorically represents the solid or compelling nature of the argument.
Његов аргумент је био јак.
His argument was strong.
In this sentence, 'јак' describes the intensity of the coffee's aroma.