This is the 8364th most frequent Russian word.
молодом
"Молодом" is the prepositional case of "молодой," meaning "young" in English.
The word "молодом" is used as an adjective modifying "возрасте" (age) in the prepositional case, describing the period of youth.
Он был в молодом возрасте, когда начал изучать музыку.
He was at a young age when he started studying music.
"Молодом" serves as an adjective describing "дереве" (tree) in the prepositional case, referring to the tree being young or newly grown.
На этом молодом дереве уже появились первые плоды.
On this young tree, the first fruits have already appeared.
It acts as an adjective modifying "поколении" (generation) in the prepositional case, emphasizing the youthfulness of the generation.