This is the 4411th most frequent German word.
heim
"Home" or "homestead."
Here, 'heim' is used to mean 'home', in the sense of returning to one's residence.
Ich gehe nach einem langen Arbeitstag endlich heim.
I am finally going home after a long workday.
In this case, 'heim' is part of a compound noun 'Seniorenheim', referring to a specific type of institution, a nursing home.
Das Seniorenheim bietet viele Aktivitäten für seine Bewohner.
The nursing home offers many activities for its residents.
Here, 'heimisch' means 'at home' or 'feeling home-like', derived from 'heim' to signify comfort or belonging.