This is the 16286th most frequent Russian word.
ребёнок
Child.
In this sentence, 'ребёнок' is used in its singular form as the subject of the sentence, referring to a young person, a child.
Ребёнок играет в парке с друзьями.
The child is playing in the park with friends.
Here, 'ребёнок' is used in a statement about a new birth, emphasizing the singular form and its reference to a young human offspring.
У нашего соседа родился ребёнок.
Our neighbor had a child born.
In this sentence, 'ребёнок' is in the accusative case ('о ребёнке') due to its use after the preposition 'о', and it refers to a child in a caregiving context.