Meaning of “baby” in the English Dictionary

"baby" in British English

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babynoun [ C ]

uk /ˈbeɪ.bi/ us /ˈbeɪ.bi/

A1 a very young child, especially one that has not yet begun to walk or talk:

a newborn baby
a six-week-old baby
a baby boy
baby clothes
baby food
Sandra had a baby (= gave birth to it) on 29 May.
Owen is the baby (= the youngest person) of the family.

A2 a very young animal:

disapproving an adult or especially an older child who is crying or behaving like a child:

It didn't hurt that much - don't be such a baby!

mainly US a word you can use when you are talking to someone you love such as your wife, husband, partner, etc.:

Oh baby, I love you.
baby carrot, sweetcorn, etc.

a type of vegetable that is specially grown to stay small

informal Someone's baby is something that they have a special interest in and responsibility for:

I don't know much about the project - it's Philip's baby.

More examples

  • The baby lay in his cot, cooing, and gurgling.
  • A new baby will automatically curl its fingers round any object it touches.
  • Their baby was born last December.
  • She wrapped the baby in a blanket.
  • For all babies, breastfeeding is far superior to bottlefeeding.

babyverb [ T ]

uk /ˈbeɪ.bi/ us /ˈbeɪ.bi/ informal

(Definition of “baby” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"baby" in American English

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babynoun [ C ]

us /ˈbeɪ·bi/

a very young child:

Sandra had a baby on May 29th.
My younger brother is the baby of the family.

Baby can be used to refer to anything young or smaller than usual:

disapproving Baby can also mean someone who is behaving childishly:

She complained like a baby about her boyfriend.

infml Baby is an affectionate way of addressing someone.

infml A baby can also be a project or job someone has a special interest in or responsibility for:

The new computer system is really Phil’s baby.

babyverb [ T ]

us /ˈbeɪ·bi/

to treat an older person like a young child:

Some parents baby their children too much.
I like to be babied when I’m sick.

(Definition of “baby” from the Cambridge Academic Content Dictionary © Cambridge University Press)