Equivocation: Logical Fallacy – Absurdly Useful Resources
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Logical fallacy

Equivocation

Using the same word in two different ways to make an argument seem valid.

Classic tell: The sign says fine for parking here, so parking here is fine.

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Further explanation

What is happening underneath?

Using the same word in two different ways to make an argument seem valid.

One word changes meaning mid-argument, and the conclusion sneaks through the gap. It is verbal sleight of hand.

01

What it sounds like

  • The sign says fine for parking here, so parking here is fine.
  • "Our plan is fair because everyone gets a fair chance." Fair as equal rules, equal outcomes, or equal access? The word is doing gymnastics.
02

How to tell

  • A key term sounds stable but means different things in different parts of the argument.
03

Why people use it

  • Ambiguity lets people borrow the emotional force of one meaning while relying on another.
04

How to combat it

  • Say: "Define that word in one way and keep it consistent."

Manipulation watch

How this gets used on people.

  • Advertisements use words like natural, clean, premium, freedom, and proven because the glow matters more than the definition.