This is the 502nd most frequent Swedish word.
ligga
"Ligga" means "to lie" (as in to recline or be situated).
The word 'ligga' here is used to describe something being in a horizontal position or located somewhere.
Boken ligger på bordet.
The book is lying on the table.
The word 'ligga' is used figuratively to denote the geographical location of a place.
Stockholm ligger i Sverige.
Stockholm is situated in Sweden.
Here 'ligga' refers to the action of being in a lying position, combined with an activity.