One of the avenging deities (Latin Furiæ, Diræ, Greek Ἐρινύες, Εὐμενίδες), dread goddesses with snakes twined in their hair, sent from Tartarus…

those formerly supposed to live in the heavenly bodies, variously represented as fallen angels, souls of dead men, and spirits originating in fire.

poetic. An effulgent spirit. (Cf. Heb. i. 7.) Obsolete.

A person or thing that exists or is present in a place but is not seen, esp. a divine, spiritual, or incorporeal being or influence felt or…

A creature or spirit imagined as embodied in or carrying the phosphorescent light seen hovering or floating at night on marshy ground. Cf. will-o'-the…

A supernatural being in the form of a calf, said to haunt the roads and countryside at night.

A title given to the Virgin Mary (see sea-star, n. 1), used allusively of a protectress or a guiding spirit.

In folklore: a sprite, ghost, or other supernatural being believed to inhabit mines. Cf. knocker, n. 1b.