This is the 8634th most frequent French word.
arrêtera
"Arrêtera" means "will stop."
'Arrêtera' here includes reflexivity with 's'' to signify that the subject is stopping his activities or action.
Après cette course, je pense qu'il s'arrêtera quelques jours.
After this race, I think he will stop for a few days.
The verb 'arrêtera' here is used in its future tense form to indicate the cessation of rain.
Il arrêtera de pleuvoir demain.
It will stop raining tomorrow.
In this sentence, 'arrêtera' describes the subject stopping her work, taking an object, 'son travail'.