fallacy - Master This Word
Master this word with our 5-step learning method – Learn English in English
fallacy Word Meanings
- a mistaken belief or idea
- a failure in reasoning or argument
- an illogical or misleading argument
fallacy Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
fallacy Phonetic & Pronunciation
UK
/ˈfæl.ə.si/
US
/ˈfæl.ə.si/
fallacy Word Etymology
Root decomposition: 'fall-' (deceive) + '-acy' (state or quality); Historical origin: from Latin 'fallacia' through Old French into English; Memory image: imagine a falling leaf that deceives you into thinking it’s still attached, symbolizing how fallacies can mislead our reasoning.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
Fallacy is a mistaken belief or a flaw in reasoning that weakens an argument; it can be a false premise, a pattern of thinking that misleads, or a jump in logic that makes conclusions seem persuasive despite weak or irrelevant evidence. In everyday use, people call something a fallacy when a claim relies on hidden biases, irrelevant appeals, or poor inductive leaps. Common examples include the straw man, the ad hominem, or confusing correlation with causation. Recognizing fallacies helps you argue more clearly and evaluate others' arguments without being swept up by rhetoric or faulty reasoning.
Usage Reminders
- Pronunciation: /ˈfæl.ə. si/
- Plural: fallacies; Adjective: fallacious.
- Common collocations: logical fallacy, formal fallacy, fallacious argument.
- Core idea: a fallacy is an error in reasoning, not simply a false belief.
- Practice tip: identify the faulty step (e. g., non sequitur) and explain why the conclusion does not follow.
Common Misconceptions
- A fallacy is just a belief that is wrong; actually it's a flaw in the argument's reasoning.
- All convincing claims are fallacies; sometimes strong evidence still presents a fallacy in reasoning.
- Formal fallacies only concern math or logic textbooks; informal fallacies appear in everyday speech.
- You must be biased to commit a fallacy; you can do so even with good intentions.
- Recognizing a fallacy automatically means the conclusion is false.
Thinking Differences
Explain to an English speaker (meta, keep short)
Learning Tips
- Learn common fallacies by name and example.
- Practice spotting pattern in short paragraphs.
- Distinguish between evidence and conclusion.
- Question premises and causal links.
- Rewrite arguments clearly to avoid fallacies.
- Read skeptical sources to see fallacies in action.
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of the word 'fallacy'?
A.A mistaken belief or misconception
B.A method of teaching
C.A type of fruit
D.A sport played in water
Step 2: Usage
Which sentence correctly uses the word 'fallacy'?
A.I plan to fallacy tomorrow.
B.His fallacy was a beautiful painting.
C.It is a fallacy to assume that all birds can swim.
D.The fallacy at the store was very friendly.
Step 3: Similar Words
Which word is most similar to 'fallacy'?
A.Truth
B.Obedience
C.Deception
D.Happiness
Step 4: Opposite Words
What is the opposite of 'fallacy'?
A.Truth
B.Error
C.Fiction
D.Misunderstanding
Step 5: Mastery
Can you think of a real-life situation where someone might make a fallacy?
A.She exercises every day to stay healthy.
B.The supermarket sells fresh vegetables.
C.Some people believe that the earth is flat.
D.They went on vacation last summer.
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