This is the 2379th most frequent Turkish word.
geçerse
"If (he/she/it) passes" or "If (it) goes through."
‘Geçerse’ is used as a conditional verb form here, combining the verb ‘geçmek’ (to pass) with the conditional suffix ‘-se’ to imply 'if he/she passes'.
Eğer bu sınavdan geçerse, üniversiteye kabul edilecek.
If he/she passes this exam, he/she will be admitted to the university.
‘Geçerse’ functions similarly to the previous sentence, indicating the conditional use of ‘geçmek’ (to pass) with respect to an action in the future.
Bu kapıdan bugün geçerse, onu mutlaka görürüm.
If he/she passes through this door today, I will definitely see him/her.
Here, ‘Geçerse’ expresses the conditional passing of the rain, implying the cessation of rainfall will trigger another action.