To baptize is to initiate or bring someone into a group. This word is often associated with the religious practice of baptizing a baby or baptizing a person who converts to a new religion. Baptismal rites almost always involve the use of water on the forehead or a person's body is fully submerged in water.
A priest baptizes a baby.
Babies are baptized by priests.
Adults are baptized when they convert.
A majority of Christian religions baptize children and adults.
The word "baptism" is a noun.
A baptism is performed by a priest.
We have to attend a baptism for our nephew.
It's believed by some religious scholars that John the Baptist performed a baptism for Jesus.
Sometimes the word "baptism" is used figuratively when a person undergoes an experience that is difficult or transformative.
Soldiers learn real-life military skills in combat. This is a baptism of fire.
Don's five months as an intern at that company served as a baptism by fire.