What does baptism mean?
Baptism is a noun denoting the central Christian rite of initiation, in which a person is admitted to the church through water — whether by full immersion, pouring, or sprinkling — symbolizing spiritual cleansing, rebirth, and incorporation into a community of faith. Practiced across virtually all Christian traditions since antiquity, it may be administered to infants (often called a christening) or to adult converts, and its exact mode and meaning vary by denomination. Beyond its strictly religious use, baptism has given rise to a vivid figurative meaning: a 'baptism of fire' describes a demanding first encounter with a task or ordeal that serves as a trial by experience. This idiom appears frequently in journalism, sports commentary, and workplace talk, lending the word a reach well beyond church life. Rooted in Greek vocabulary for dipping and washing, baptism remains one of English's most resonant terms for beginnings — both sacred and secular.
nounA Christian religious rite of initiation involving immersion in, or sprinkling or pouring with, water, symbolizing admission to the church, purification, and spiritual rebirth. The word also figuratively refers to any severe first experience that serves as an initiation into something new.
- The Christian sacrament of initiation involving water — by immersion, pouring, or sprinkling — signifying admission to the church and spiritual cleansing.
- A person's first experience of something difficult or demanding, regarded as a formative initiation (as in 'a baptism of fire').
"The infant's baptism was celebrated by the whole extended family at the village church."
"Her baptism took place in the river where the congregation gathered each spring."
"His first week managing the restaurant during the holiday rush was a real baptism of fire."
The plural is standard when referring to multiple instances of the rite; the figurative sense ('a baptism of fire') is almost always used in the singular.
"The parish records list dozens of baptisms performed over the past year."
The phrase 'baptism of fire' comes straight from the Bible — John the Baptist promised Jesus would baptize with the Holy Spirit 'and with fire' — but today it usually means surviving a brutal first day on the job.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of baptism
Baptism derives ultimately from the Greek word baptisma (βάπτισμα), from baptizein, meaning 'to immerse, dip, or wash,' a verb long used for dyeing cloth and ritual washing before it acquired its distinctively Christian significance. The term entered English via Latin baptisma and Old French in the medieval period, and has been used continuously in English religious language ever since. Cognates sharing the same Greek root include baptize, Baptist (as in John the Baptist), baptistery, and Anabaptist, the name of the sixteenth-century movement that insisted on adult baptism.
Related word forms
How baptism is actually used
Baptism carries strong religious connotations and is used reverently in ecclesiastical contexts. The figurative sense ('baptism of/by fire') is idiomatic and slightly informal, common in journalism and everyday speech to describe a harsh initiation into a role or situation. Different denominations practice baptism differently (immersion vs. affusion), so phrasing can carry doctrinal weight in religious writing.
Easily confused with baptism
A christening is specifically the naming and baptism of an infant, whereas baptism is the broader rite itself, applicable to adults as well as infants.