This is the 6156th most frequent Swedish word.
koivistos
"Koivistos" is not a standard Swedish word; it appears to be a Finnish surname.
In this sentence, 'Koivistos' is being used as a plural family name to denote a group of people sharing the same surname.
Koivistos är kända för sin vänlighet och gästfrihet.
The Koivistos are known for their kindness and hospitality.
Here, 'Koivisto' is used to refer to an individual with the surname Koivisto in a singular form.
Jag träffade en Koivisto på konferensen i helgen.
I met a Koivisto at the conference over the weekend.
In this context, 'Koivistos' is used as a possessive form (in Swedish, genitive by an apostrophe and an 's') to indicate influence pertaining to someone named Koivisto.