This is the 596th most frequent Indonesian word.
keluarganya
"His/her/their family."
The term 'keluarganya' is used here to denote 'his family,' illustrating possession of 'keluarga' (family) by 'Dia' (he).
Dia mendukung keluarganya dalam semua hal.
He supports his family in everything.
In this instance, 'keluarganya' means 'their family,' indicating familial relationship belonging to 'Mereka' (they).
Mereka merayakan hari libur bersama keluarganya.
They celebrate the holiday with their family.
Here, 'keluarganya' refers to 'their family,' indicating possession connected to the contextual subject of the conversation.