This is the 870th most frequent Finnish word.
liikkeen
"Liikkeen" is the genitive singular form of "liike," meaning "movement," "motion," "business," or "shop," depending on context.
Here, 'liikkeen' means 'the shop's', showing possession as it is a genitive form of the word 'liike' which can mean 'shop'.
Liikkeen ikkunoissa oli kauniita koristeita.
There were beautiful decorations in the shop's windows.
In this sentence, 'liikkeen' refers to 'the motion's', indicating possession and connected to 'kehitystä', or 'development', to specify the type of development.
Hän seurasi liikkeen kehitystä tarkasti.
He followed the development of the motion closely.
Here, 'liikkeen' is associated with 'store' in genitive form, implying possession related to the specific act of opening.