This is the 4685th most frequent Russian word.
дружба
Friendship.
Here, "дружба" is used as a noun to signify the concept of friendship in general, showcasing its abstract and universal meaning.
Дружба — это важная часть нашей жизни.
Friendship is an important part of our lives.
In this sentence, "дружба" refers specifically to the personal relationship of friendship between two individuals, demonstrating its use in a specific context.
Моя дружба с ней началась, когда мы были детьми.
My friendship with her began when we were children.
Here, "дружба" is used to convey the deep emotional significance and personal value placed on the friendly bond with someone.