What is the term used for a young female dog?

The term used for a young female dog is "bitch." This terminology is specific to canines and is the correct classification for a female dog that has not yet reached maturity. In many contexts, the word can carry a neutral connotation relating to the animal's sex and reproductive status rather than the negative connotations it may have in casual speech.

The other terms refer to young female animals of different species and are not applicable to dogs. For instance, "filly" refers to a young female horse, "doeling" denotes a young female goat, and "gilt" is a term used for a young female pig. Understanding these terms helps in recognizing the distinctions between different animal species and their classifications.