The term "hild" is used to describe a female child. However, there are several synonyms that can be used to describe this concept. One common synonym is "girl," which is generally used to refer to a female child who is not yet a teenager. Another common synonym for "hild" is "youngster," which can be used to describe a child of either gender. Additionally, "kid" is another term that is commonly used to refer to a child, regardless of gender. Other synonyms for "hild" might include "lass," "lassie," or "miss," but these are somewhat archaic and may not be commonly used in modern English.