This is the 284th most frequent Slovenian word.
deluje
"Deluje" means "works" or "functions" in English.
In this context, 'deluje' refers to the effective operation of the medicine to alleviate pain.
Proti bolečini deluje ta zdravilo učinkovito.
This medicine works effectively against the pain.
In this sentence, 'deluje' means that the computer is functioning or operating correctly.
Računalnik deluje brez težav.
The computer is working without problems.
Here, 'deluje' conveys the impression or appearance, describing the perceived quality of her smile.