This is the 280th most frequent Norwegian word.
hundre
"Hundre" means "hundred" in English.
Here, 'hundre' denotes the number 100 being used in a quantitative sense to refer to the page count of a book.
Jeg har lest hundre sider av boken.
I have read a hundred pages of the book.
In this sentence, 'hundre' is indicating an approximate value of 100 in terms of currency (kroner).
Det kostet nesten hundre kroner.
It cost almost a hundred kroner.
Here, 'hundre' represents 100 as a measurement of time, specifically years.