This is the 10452nd most frequent Russian word.
верху
"Вверху" means "above" or "at the top."
'Наверху' here indicates a physical location, specifically the uppermost part of an object or structure.
Книга лежит наверху шкафа.
The book is lying on the top of the cupboard.
'Наверху' in this sentence denotes someone being at the top part of a tree, emphasizing spatial positioning.
Он сидит наверху дерева и смотрит вниз.
He is sitting on top of the tree and looking down.
'Наверху' in this context describes the location at the summit or peak of the mountain.