This is the 20th most frequent Catalan word.
molt
"Very" or "much."
Here, 'molt' is used as an adverb to intensify the adjective 'interessant' (interesting).
Aquest llibre és molt interessant.
This book is very interesting.
Here, 'molt' is used as an adverb to intensify the verb 'agradar' (to like), indicating a strong affection towards the action.
M'agrada molt llegir.
I like to read a lot.
In this case, 'molt' is used as a quantifier adjective (in its plural masculine form 'molts') to indicate the quantity of the noun 'amics' (friends).