This is the 611th most frequent Ukrainian word.
однієї
The Ukrainian word "однієї" means "of one" or "one's" (genitive singular feminine form).
The word 'однієї' is in the genitive case to specify the quantity or specific qualifier of 'new book'.
Ми потребуємо однієї нової книги для класу.
We need one new book for the class.
The word 'однієї' is used in the genitive case as part of the phrase meaning 'of one of the largest companies.'
Вона є представником однієї з найбільших компаній у світі.
She represents one of the largest companies in the world.
The word 'однієї' is in the genitive case and is used here to refer to 'another one' or 'one more' in a possessive or extended context.