This is the 478th most frequent Swedish word.
dessa
"These."
The word 'dessa' is used here as a demonstrative pronoun to indicate specific flowers being referred to.
Dessa blommor är mycket vackra.
These flowers are very beautiful.
'Dessa' is employed as a demonstrative pronoun to specify a group of books highlighted in the context.
Jag älskar att läsa dessa böcker på kvällen.
I love reading these books in the evening.
Here, 'dessa' functions as a demonstrative pronoun to describe a particular period being discussed.