This is the 559th most frequent Ukrainian word.
ній
The Ukrainian word "ній" means "her" or "to her" (referring to the prepositional or dative case).
The word 'ній' acts as a prepositional pronoun referring to a previously mentioned feminine noun, meaning 'in it'.
Вона знайшла важливу інформацію у ній.
She found important information in it.
The word 'ній' is in its prepositional form ('неї') when used with the preposition 'про', referring to a previously mentioned feminine noun or person, meaning 'about her'.
Думки про неї завжди мотивують.
Thoughts about her always motivate.
Here 'ній' (in its form 'неї') is used with the preposition 'від' to indicate dependence or reference, and it refers back to the subject as 'herself'.