baby

the word "baby" is a term that signifies an extremely young human being, typically in the age range of birth to about the age of several months to a few years. In common language, it is often used to refer to a very young child who is not yet able to speak or take care of themselves independently.
The term "baby" is also used to describe the very young of various types of animals, including human infants but also non-human animals such as puppies, kittens, and lambs. In these cases, the term refers to the young of a specific species within a particular taxonomic family.
Baby is also a slang term that has come to mean anyone who is perceived by others as being immature, naive, or foolish, often used in sarcasm or as a term of endearment. For example, it might be used to describe a男朋友 who is considered to be acting like a baby by his actions or behavior towards his girlfriend.
In slang terms, "baby" may also refer to a vehicle, particularly a sports utility vehicle (SUV) or minivan, that is commonly used as a gun tractor or ammunition carrier. In this context, it is simply a matter of semantics. The name "baby" is applied to the vehicle in question simply because people commonly refer to baby vehicles in slang.
In conclusion, the word "baby" is a versatile term with a wide range of applications and meanings. Whether refers to humans, animals, or vehicles, it is always associated with an impression of freshness, innocence, and cuteness.