1N-COUNT 恶魔般的人;极端凶残的人 If you describe someone as a fiend, you mean that they are extremely wicked or cruel. 恶魔般的人;极端凶残的人 [written]
A tearful husband repeated calls for help in catching the fiend who battered his wife.
泪流满面的丈夫不断呼喊求助，想抓到摧残他妻子的恶魔。
2N-COUNT [n NOUN]对…着魔的人;对…痴狂的人;…迷Fiend can be used after a noun to refer to a person who is very interested in the thing mentioned, and enjoys having a lot of it or doing it often. 对…着魔的人;对…痴狂的人;…迷
...if you're a heavy coffee drinker or strong-tea fiend.