The term 'FEMALE FIEND' can be broken down into two words, 'FEMALE' and 'FIEND'. The word 'FEMALE' is defined as a person of the sex that can bear offspring or produce eggs, while the word 'FIEND' is defined as an evil spirit or a wicked person. OGRESS is a six-letter word that can be used to describe a FEMALE FIEND, as it is defined as a FEMALE monster or giant. Therefore, the term 'FEMALE FIEND' can be used to describe a FEMALE monster or giant with evil intentions.