This is the 74th most frequent Icelandic word.
fleiri
"Fleiri" means "more" (in quantity or number).
The word 'fleiri' is used to indicate a comparison in quantity, meaning 'more' in the sense of 'an increased number of guests'.
Fleiri gestir komu á sýninguna en búist var við.
More guests attended the exhibit than expected.
Here, 'fleiri' is used to inquire about an increase in the number, specifically referring to 'cookies'.
Viltu fá fleiri kökur?
Do you want to have more cookies?
In this sentence, 'fleiri' expresses a desire for an increased number of 'opportunities' moving forward.