This is the 757th most frequent Serbian word.
јутарња
"Јутарња" means "morning" in English.
Here, 'јутарња' modifies 'кафа' (coffee), implying it is the coffee consumed in the morning.
Јутарња кафа ми је омиљени оброк.
Morning coffee is my favorite meal.
In this sentence, 'јутарњој' modifies 'шетњи' (walk), describing the time of day at which the walk occurred.
Уживао сам у јутарњој шетњи крај реке.
I enjoyed the morning walk by the river.
Here, 'јутарњем' modifies 'састанку' (meeting), specifying that it took place in the morning.