will-o'-the-wisp   (TTS Sound)

The noun will-o'-the-wisp has 2 senses

• friar's lantern, ignis fatuus, jack-o'-lantern, will-o'-the-wisp -- (a pale light sometimes seen at night over marshy ground)


• will-o'-the-wisp, ignis fatuus -- (an illusion that misleads)