This is the 5709th most frequent Catalan word.
falls
"Falls" in Catalan means "failures" or "flaws."
Here, 'cau' (falls) is used in the present tense to describe the action of falling, referring to the physical movement of the leaf.
Cau una fulla de l'arbre.
A leaf falls from the tree.
In this sentence, 'cau' (falls) describes a person tripping or losing his balance, which could be considered metaphorical usage depending on context.
Quan camina, cau sovint perquè està distret.
When he walks, he often falls because he is distracted.
Here, 'cau' (falls) is applied to natural occurrences, like rain, to convey the idea of precipitation or pouring down.