Falsehood n. : Want of truth or accuracy; an untrue assertion or representation; error; misrepresentation; falsity.

Falsehood n. : A deliberate intentional assertion of what is known to be untrue; a departure from moral integrity; a lie.

Falsehood n. : Treachery; deceit; perfidy; unfaithfulness.

Falsehood n. : A counterfeit; a false appearance; an imposture.

Example:
Who is behind the Falsehood that teachers are underpaid?

Taxonomy
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Defination from the web:
falsehood from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... Learn more about "falsehood" and related topics at Britannica.com. Pronunciation Symbols. Share this entry: Link to this page: Cite this page: Products ...