This is the 1410th most frequent French word.
beaucoup
"Beaucoup" means "a lot" or "much" in English.
Here, 'beaucoup' is used to express a high degree or intensity, indicating the subject's strong liking for the movie.
J'aime beaucoup ce film.
I like this movie a lot.
In this sentence, 'beaucoup' quantifies the action of raining, describing the intensity or quantity of rain occurring today.
Il pleut beaucoup aujourd'hui.
It is raining a lot today.
Here, 'beaucoup' is used in a quantifying sense to indicate a large number or quantity of friends possessed by the subject.