Modern dictionaries

The structure and use of dictionaries have changed as new technologies developed.

  • Easily available online dictionaries make it easier for people to use and cherry-pick preferred definitions in their arguments.
  • Dictionaries can be quickly updated with new words or new meanings of existing words.
  • Dictionaries are able to list a wider range of meanings and connotations.
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The argument from dictionary

The argument from a dictionary is a logical fallacy and happens when someone's argument is based, in a problematic way, on the definition of a particular term as it appears in a dictionary. The problem with these arguments:

  • Dictionaries are descriptive, meaning that they attempt to describe how people use the language. It is not prescriptive in that it instructs them how to do so in a definitive manner.
  • Dictionaries don't always reflect the meaning of words as they're used by people.
  • Different dictionaries can list different definitions for a given term, and may even have several definitions for the same word.

Not every use of a definition is necessarily fallacious. If the definition is properly justified and is selected in a properly justified way, it is generally not fallacious. However, it is fallacious when at least one of the following conditions are true:

  • There is no valid reason for using the definition.
  • The definition was cherry-picked out of a range of possible definitions.

"We should ignore the theory of evolution because the dictionary says that a theory is just an opinion that you have about something you can't prove."

The person using this fallacy is basing their statement on a specific definition of the word "theory" while ignoring alternative definitions that will better capture the meaning of the term as it's used in a scientific context.

  • Reportive definitions aim to accurately capture the meaning of a term as it's ordinarily used.
  • Precising definitions add relevant criteria to a reportive definition to make it more precise for a specific purpose.
  • Stipulative definitions are used to establish a specific purpose. For example, "for the purpose of the present document, the term 'contract' means..."
  • A persuasive definition is a stipulative definition that is dressed up as a reportive definition or as a claim in an argument. The terms are redefined to present one's preferred definitions as facts.
  • Ostensive definitions are based on examples of the word that is being described. For example, "liquid" could be "things like water and oil."
  • Misleading definitions relies on misleading language so that its intended meaning is different than the meaning that most people will use.
  • Operational definitions are used to define certain measures where an exact, reproducible definition is needed, such as in scientific studies.

When responding to appeals to definition, it is useful to know the terms denotation, which is the literal meaning of a word, and connotation, which is a feeling the word evokes beyond its denotation.

  • Explain why the use of the definition is inappropriate in this case.
  • Explain why the proposed definition is flawed. Other dictionaries may offer different meanings than the one your opponent has chosen.
  • You can sometimes benefit from using specific and relevant examples to show why such arguments are problematic.
  • You can ask the person using the fallacy to correctly justify their reasoning in light of your criticism.

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Circumlocution: Too Many Words

People often say something using more words than required, usually to be vague or misleading. This phenomenon, known as circumlocution, is often intentional and a ploy used by politicians and salesmen to be evasive or to confuse the listener(or buyer).

A lengthy, wordy response is often used to hide the fact that they don’t really want to answer the question directly, or don’t have the answer for it in the first place.

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A false premise

... is a faulty assumption that becomes the basis of an argument and makes it logically unsound. For example, all birds can fly. Penguins can't fly. Therefore, penguins aren't birds. The premise that all birds can fly is false since some birds can't fly.

A false premise underpins many logical fallacies, making it essential to understand them.

False Premise: When Arguments Are Built on Bad Foundations - Effectiviology

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When responding to specific arguments within a Gish gallop, you can use certain techniques to respond effectively to the flawed arguments.

  • When someone states there is support for their stance, you can ask your opponent to list the specific evidence they claim support their view.
  • When responding to generalised claims, show that they contradict the scientific consensus on the topic.

Gish Gallop: When People Try to Win Debates by Using Overwhelming Nonsense - Effectiviology

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