Simple Definition of will-o'-the-wisp

from our Learner's Dictionary

will-o'-the-wisp

noun

1
: a goal that cannot be reached
the will-o'-the-wisp of world peace
2
: a light that sometimes appears at night over wet ground

Cite this Entry

“Will-o'-the-wisp.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/will-o%27-the-wisp. Accessed 21 Jun. 2026.

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