This is the 11141st most frequent Swedish word.
mellanstora
Medium-sized.
Here, 'mellanstor' is used to describe the size of the car, indicating it's between small and large.
Jag köpte en mellanstor bil som passar min familj.
I bought a medium-sized car that suits my family.
In this case, 'mellanstort' is utilized to characterize the dimensions of the house, specifying it's neither small nor large.
De valde att bo i ett mellanstort hus på landsbygden.
They chose to live in a medium-sized house in the countryside.
Here, 'mellanstor' describes the size of the garden, showing it's suitable for some gardening but not excessively large.