This is the 5444th most frequent Swedish word.
finnish
"Finnish" in Swedish (finska) refers to the language spoken in Finland.
Here, 'finska' is used as a noun to refer to the Finnish language.
Jag kan tala finska som ett av mina språk.
I can speak Finnish as one of my languages.
In this sentence, 'finsk' is an adjective describing the grammar as pertaining to or characteristic of the Finnish language or culture.
Finsk grammatik kan vara lite utmanande för nybörjare.
Finnish grammar can be a bit challenging for beginners.
Here, 'finskt' is an adjective in neuter form indicating ownership or identity in relation to Finland.