This is the 37th most frequent Norwegian word.
ligger
"Is located" or "lies."
Here, 'ligger' describes the physical state of the book being positioned on the table.
Boken ligger på bordet.
The book lies on the table.
Here, 'ligger' indicates the placement or condition of the clothes inside the washing machine.
Klærene ligger i vaskemaskinen.
The clothes are in the washing machine.
In this context, 'ligger' communicates the geographical location of the city relative to the river.