noun A devil or demon; a malignant or diabolical being; an evil spirit.
noun A very evil person.
noun An enemy; a foe.
We waited for our fiend to arrive.
noun The enemy of mankind, specifically, the Devil; Satan.
noun An addict or fanatic.
dope fiend
verb To yearn; to be desperate. .mw-parser-output .object-usage-tag{font-style:italic}.mw-parser-output .deprecated{color:var(--wikt-palette-grey-lime-8,olivedrab)}[ with for ‘something, especially drugs’]