Definitions for babyˈbeɪ bi

Random House Webster's College Dictionary

ba•by^*ˈbeɪ bi(n.)(pl.)-bies

(n.)an infant or very young child.
Category: Developmental Biology
a human fetus.
Category: Developmental Biology
a newborn or very young animal.
Category: Zoology
the youngest member of a family, group, etc.
an immature or childish person.
Informal. Sometimes Disparaging and Offensive. a girl or woman. a person of whom one is deeply fond; sweetheart. (sometimes cap.) an affectionate or familiar term of address (sometimes offensive when used to strangers, subordinates, etc.). a project, creation, etc., that requires one's special attention or of which one is esp. proud. a person or object:
Those big babies can carry a lot of cargo.
Category: Informal, Sexuality, Status (usage)
(adj.)for a baby:
baby clothes.
of or like a baby; infantile:
baby skin.
smaller than the usual:
baby eggplants.
(v.t.)to treat like a young child; pamper.
to handle or use with special care.

^* Usage: Definition 5a is sometimes used with disparaging intent and perceived as insulting or demeaning to women. Definition 5b is used by a man or woman to refer to a sweetheart. Definition 5c is an affectionate term of address. However, when used in the workplace or in social interactions with strangers, it is sometimes perceived as insulting.

Origin of baby:

1350–1400; ME; see babe , -y2

ba′by•ish•ness(n.)

Princeton's WordNet

baby, babe, infant(noun)
a very young child (birth to 1 year) who has not yet begun to walk or talk
"the baby began to cry again"; "she held the baby in her arms"; "it sounds simple, but when you have your own baby it is all so different"
baby(noun)
the youngest member of a group (not necessarily young)
"the baby of the family"; "the baby of the Supreme Court"
child, baby(noun)
an immature childish person
"he remained a child in practical matters as long as he lived"; "stop being a baby!"
baby(noun)
an unborn child; a human fetus
"I felt healthy and very feminine carrying the baby"; "it was great to feel my baby moving about inside"
baby, babe, sister(noun)
(slang) sometimes used as a term of address for attractive young women
baby(noun)
a very young mammal
"baby rabbits"
baby(verb)
a project of personal concern to someone
"this project is his baby"
pamper, featherbed, cosset, cocker, baby, coddle, mollycoddle, spoil, indulge(verb)
treat with excessive indulgence
"grandparents often pamper the children"; "Let's not mollycoddle our students!"

Kernerman English Learner's Dictionary

baby(noun)ˈbeɪ bi
a very young child
a woman holding a baby; a baby son/daughter
babyˈbeɪ bi
to give birth
She had a baby in December.
babyˈbeɪ bi
a young animal
a mother duck and her babies; a baby rabbit

Wiktionary

baby(Noun)
A very young human, particularly from birth to a couple of years old or until walking is fully mastered.
baby(Noun)
Any very young animal, especially a vertebrate; many species have specific names for their babies, such as kittens for the babies of cats, puppies for the babies of dogs, and chicks for the babies of birds. See :Category:Baby animals for more.
baby(Noun)
A person who is immature or infantile.
Stand up for yourself - don't be such a baby!
baby(Noun)
A term of endearment for a girlfriend or boyfriend or spouse.
baby(Noun)
A form of address to a man or a woman considered to be attractive.
Hey baby, what are you doing later?
baby(Noun)
A pet project or responsibility.
The annual report has been my baby since September.
baby(Noun)
The lastborn of a family; a benjamin.
baby(Verb)
To coddle.
baby(Adjective)
Of a child: very young; of the age when he or she would be termed a baby or infant.
a baby boy
baby(Adjective)
Of an animal: young.
a baby elephant
baby(Adjective)
Intended for babies.
baby clothes
baby(Adjective)
Picked when small and immature (as in baby corn, baby potatoes).

Origin: From babee, babi, from babe, equivalent to .

Webster Dictionary

Baby(noun)
an infant or young child of either sex; a babe
Baby(noun)
a small image of an infant; a doll
Baby(adj)
pertaining to, or resembling, an infant; young or little; as, baby swans
Baby(verb)
to treat like a young child; to keep dependent; to humor; to fondle