Simple Definition of baptism

from our Learner's Dictionary

baptism

noun

plural baptisms
: a Christian ceremony in which a small amount of water is placed on a person's head or in which a person's body is briefly placed under water

Note: A baptism officially makes someone a member of the Christian Church.

There were over 100 baptisms at our church last year.
He received the sacrament of baptism as an infant.
often used figuratively
The interview was a baptism into journalism for the young writer. [=it was the young writer's first experience as a journalist]

Note: A baptism of fire or (chiefly US) baptism by fire is a first experience that is very difficult or painful, such as the first time that soldiers are in a battle.

Cite this Entry

“Baptism.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/baptism. Accessed 15 Jun. 2026.

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