koiriensa
Koiriensa is a Finnish noun phrase used to express possession by a third-person plural subject over multiple dogs. The phrase translates roughly as “their dogs” and is encountered in everyday language as well as in literature. It is a product of Finnish possessive constructions, where the head noun carries a possessive meaning that reflects the owner, in this case a group of people or entities.
In usage, koiriensa appears in contexts where the owner is plural and the possessed item is dogs.
Examples help illustrate the concept. For instance, koiriensa kanssa means “with their dogs,” signaling an action
See also: Finnish grammar, possessive suffixes, genitive case, noun phrases.