This is the 125th most frequent Danish word.
stort
"Stort" means "big" or "large" in English.
'Stort' here describes the size of the house, indicating it is large.
Det er et stort hus.
It is a big house.
'Stor' is used figuratively here to emphasize the significance of the effort.
Hun har gjort en stor indsats.
She has made a big effort.
'Stor' is applied to highlight the magnitude of the change in the results.