This is the 12039th most frequent Polish word.
leżała
"Leżała" means "she/it was lying" in English.
The word 'leżała' is used here in the past tense to describe the state of an object (the book) being positioned stationary on a surface (the table).
Książka leżała na stole.
The book was lying on the table.
The word 'leżała' illustrates the past action of a person (she) being in a reclined position on the beach.
Leżała na plaży, opalając się.
She was lying on the beach, sunbathing.
Here, 'leżała' is used in reference to a puddle, indicating its previous state of existence on the floor.