House name?So then you are saying they have another name besides SLUGA?
This is telling you the name is found in 246 places, and that is followed by places the name is found and the numbers of either people or households with those names.
Here is a good explanation of the tradition of House Names in Slovenia as found on the net
In rural Slovenia there is a custom, going back a number of centuries, whereby each house has a name which may or may not be the same as that of the family living there. This name appears to be that of the person who first built the house. Through subsequent generations, regardless of whether the farm or house was inherited by the male or female line, or even sold to an unrelated individual, the house-name remained the same. Even today neighbours will refer to each other by this house-name and it is not unusual for them to be ignorant of each other’s surname.