a Christian ceremony in which a baby is officially named and welcomed into the Christian Church compare baptism We all got together at the christening. my nephew’s christening See related entries: Babies, Religious ceremonies Culture The priest baptizes the child by putting water from the font (= a special bowl) on the child's head and gives it a name. Promises are made on behalf of the child by its godparents. A christening is a special occasion for a family, although fewer people have one now than in the past. The baby wears a special dress, or christening robe, and receives christening presents, which are often things made of silver.