This is the 7521st most frequent Russian word.
диана
"Диана" is a Russian female given name, equivalent to "Diana" in English.
Here, 'Диана' is used as a proper noun, representing a person's name.
Диана – это имя девушки.
Diana is a girl's name.
In this sentence, 'Дианы' refers to the possessive form of the name Diana, indicating ownership or relation.
Искусствоведы обсуждали динамичное движение в скульптуре Дианы.
Art critics were discussing the dynamic movement in Diana's sculpture.
Here, 'Диана' is used again as a proper noun, specifying the role played by someone named Diana in a performance.