valinnansa
Valinnansa is a Finnish noun phrase meaning “one’s choice” or “the choice of a person.” It is formed from the noun valinta, “choice,” together with the third-person possessive suffix -nsä (often written as -nsä or -nsa, depending on vowel harmony). In standard Finnish, the common spelling of this construction is valintansa; valinnansa is generally considered a misspelling or nonstandard variant, though it may appear in some informal texts. The suffix indicates that the choice belongs to or was made by the subject of the sentence.
Grammatically, valintansa functions as a nominal phrase referencing a specific decision made by someone already identified
Usage notes: valintansa is used when the writer or speaker wants to refer to that person’s decision
See also: valinta (choice), valinnan (the genitive form), valinnanvapaus (freedom of choice), päätöksenteko (decision-making).