IPA: //ˌriːˈbæptɪzəm//
KK: /riˈbæptɪzəm/
A ceremony where a person is baptized again after having been baptized before.
After much reflection, she decided to undergo rebaptism as a sign of her renewed faith.
Rebaptism → It is formed from "re-" (meaning again) and "baptism" (from Greek "baptisma", meaning immersion or baptism). The word refers to the act of being baptized again.
Think of being 'immersed' ('baptisma') 'again' ('re-') — that's why rebaptism means to be baptized again.