hänheidät
Hänheidät is a Finnish word that functions as the accusative plural form of the pronoun hän, which means "he" or "she." Therefore, hänheidät directly translates to "them" when referring to a group of people previously mentioned or understood in context. It is used when these individuals are the direct object of a verb.
For example, if one were to say "Minä näin heidät," the word "heidät" is the accusative plural