How do we change the Term “Room” to “Apartment”?

Greetings
What we have is an Accommodation, an entire Apartment (that is a complete house, or full building). We don’t rent out the Rooms, we only rent-out the entire building per night.

However, with the booking portal, what we have there is Room not Apartment.
We want the term ROOM to be replaced with the term APARTMENT on the booking page.
Because the term “Room” is causing confusion for our prospective Guests. When they see the term Room, they tend to think that its “a single room out of the entire apartment” not knowing that it’s the “full apartment” we are offering for booking.
Please find the screenshot below showing the exact issue.
https://prnt.sc/qeunpc

How do we change the Term “Room” to “Apartment”?
Kindly advise.
Best regards