This is the 102nd most frequent Swedish word.
hem
"Home."
In this instance, 'hemmet' (the home) is used as a noun, referring to the physical or conceptual place of one's residence or sanctuary.
Hemmet är en säker plats.
The home is a safe place.
Here, 'hemma' (at home) is an adverb, describing the feeling of being in a home or a home-like environment.
De känner sig hemma här.
They feel at home here.
Here, 'hem' is used as a destination, expressing movement towards one's home.