1. (n.) A phosphorescent light that appears, in the night, over marshy ground, supposed to be occasioned by the decomposition of animal or vegetable substances, or by some inflammable gas; -- popularly called also Will-with-the-wisp, or Will-o'-the-wisp, and Jack-with-a-lantern, or Jack-o'-lantern.

2. (n.) Fig.: A misleading influence; a decoy.

airy nothing autism autoluminescence backfire balefire beacon beacon fire bioluminescence blaze bonfire bubble burning ghat campfire cathode luminescence cheerful fire chemicoluminescence chemiluminescence chimera combustion conflagration corposant cozy fire crackling fire crematory crystalloluminescence daydream death fire deception deluded belief delusion dereism double corposant dream dream vision dreamland dreamworld electroluminescence false belief fata morgana fen fire fire flame flashing point flicker flickering flame fluorescence forest fire fox fire funeral pyre hallucination ignition illusion ingle lambent flame luciferase luciferin luminescence luminophor marshfire mirage misbelief misconception noctiluscence open fire phantasm phosphor phosphorescence photoluminescence pipe dream prairie fire pyre radioluminescence raging fire sea of flames self-deceit self-deception self-delusion sheet of fire signal beacon smudge fire thermoluminescence three-alarm fire tribofluorescence triboluminescence tribophosphorescence trick trip two-alarm fire vapor watch fire wildfire wisp witch fire wrong impression