What does baby mean?
"Baby" is the standard English word for a very young child, particularly an infant who has not yet learned to walk or talk, though its reach extends far beyond the nursery. It can denote the youngest member of any group — "the baby of the family" or "the baby of the team" — and is widely used as an informal term of endearment between romantic partners. Figuratively, people speak of a cherished project or creation as "my baby," conveying personal pride and protective attachment. As a verb, to baby someone means to pamper or treat them with excessive tenderness, usually with a hint of mild disapproval. The word carries warm, affectionate connotations in nearly all its uses, though it can sound patronizing when applied to capable adults. Derived forms such as "babyish," describing childish immaturity, and "babyhood," meaning the state of being a baby, extend its usefulness across registers from intimate conversation to journalism and literature.
A very young child, especially one newly born; also, the youngest member of a family or group, or a person treated with affectionate indulgence.
"The new parents brought their baby home from the hospital on Friday."
(Informal) To treat someone with excessive care, indulgence, or protection.
"Stop babying him — he needs to learn to handle things himself."
Usually carries a mildly critical tone, suggesting overprotectiveness.
Standard plural, formed by changing -y to -ies. Used both literally (multiple infants) and figuratively.
"The ward was full of newborn babies."
The word "baby" likely imitates one of the first sounds humans ever make — baby talk itself gave us the word.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of baby
"Baby" arose in Middle English, probably as a reduplicated or affectionate form of the older word "babe," which itself may echo the babbling sounds infants make — a so-called nursery word like "mama" and "papa." It has been in continuous use since at least the late medieval period and spread throughout the English-speaking world with no significant regional variation in form. Its derivative "babyish" and the noun "babyhood" developed naturally within English, while the related nursery terms "babe," "mama," and "papa" reflect the same imitative origin.
Related word forms
How baby is actually used
"Baby" is neutral and universal in everyday speech, though in formal medical writing "infant" or "newborn" is often preferred. As a term of endearment between adults it is informal and intimate; calling an adult "the baby" of a group can be affectionate but occasionally patronizing. The verb sense ("don't baby him") is informal and can imply criticism of overprotectiveness.
Easily confused with baby
"Babe" is a literary or archaic synonym for an infant, while "baby" is the everyday modern term; "babe" is also used colloquially as a term of endearment for an adult partner.