This is the 12007th most frequent French word.
tombera
"Tombera" means "will fall."
The word 'tombera' is used in its future tense form representing a physical action of falling.
Il tombera s'il ne regarde pas où il marche.
He will fall if he doesn't watch where he's walking.
The word 'tombera' indicates an event occurring naturally in the future.
Le fruit tombera de l'arbre lorsqu'il sera mûr.
The fruit will fall from the tree when it is ripe.
In this sentence, 'tombera' is used metaphorically for rain precipitation.