Blog/Logical Fallacy
February 8, 2026

Equivocation Fallacy

Spot the Fallacy Team

Team Content

Equivocation shifts the meaning of a key word or phrase to make an argument seem valid.

Equivocation shifts the meaning of a key word or phrase to make an argument seem valid.

Why it is a fallacy

A claim needs evidence that connects the reasons to the conclusion. This fallacy skips that connection or replaces it with a shortcut.

Examples

  • The sign says 'fine for parking,' so it must be fine to park here.
  • Freedom means doing what you want, so any rules are wrong.
  • This plan will save money, so we should save it for later.

How to respond

  • Clarify the meaning of key terms.
  • Ask which definition is intended in each step.
  • Rewrite the argument with precise wording.

Related fallacies

FAQ

Is equivocation the same as ambiguity?
Equivocation is a specific type of ambiguity where meanings shift mid-argument.

How do I fix equivocation?
Define terms once and use them consistently throughout the argument.

References

  • Stanford Encyclopedia of Philosophy (Fallacies)
  • Internet Encyclopedia of Philosophy (Logic and Critical Thinking)
  • Nizkor Project (Fallacies)