B1 Noun Informal|neutral #17 よく出る 2分で読める

fool

/fuːl/

The word "fool" describes someone acting stupidly or can mean to deceive, making it a versatile term for expressing foolishness or trickery.

30秒でわかる単語

  • A person who acts unwisely or lacks good judgment.
  • Can also mean to trick or deceive someone, or to behave playfully.
  • Often used informally to express frustration or amusement.

Overview

The word “fool” primarily functions as a noun, referring to a person who behaves unwisely or lacks good judgment. It can also describe a historical entertainer, like a jester, who would amuse royalty with antics and wit. Less commonly, “fool” can be a verb, meaning to trick or deceive someone, or to behave playfully and without seriousness. Understanding its dual nature as both a person and an action is key to mastering its usage.

As a noun, “fool” is often used in exclamations like “You fool!” or to describe someone's character, "He's such a fool.“ It can also appear in phrases like ”make a fool of oneself“ (to act stupidly and cause embarrassment) or ”play the fool“ (to behave in a silly way for amusement). As a verb, it commonly appears in constructions like ”to fool someone into believing something“ or ”don't try to fool me.“ It can also be used reflexively, ”to fool around," meaning to waste time or behave playfully.

You'll encounter “fool” in everyday conversations, often when someone makes a mistake or acts carelessly. It's prevalent in literature, especially in older texts where jesters are prominent characters. In informal settings, it's used to tease or playfully scold. It also appears in idioms and proverbs, highlighting its long-standing presence in the English language.

When comparing "fool" with similar words:

  • Idiot: Stronger and more derogatory than “fool,” implying a fundamental lack of intelligence rather than just foolish behavior.
  • Jester: Specifically refers to a historical entertainer, often dressed in colorful clothes, whose job was to make people laugh. While a jester acts like a fool, the term “fool” is broader.
  • Clown: An entertainer who performs comedic acts, often in a circus. Similar to a jester in function but more modern.
  • Trick: (verb) Similar to “fool” (verb), but “trick” often implies a more deliberate deception, while “fool” can sometimes imply simply misleading someone without malicious intent.
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使い方のコツ

"Fool" can be used playfully among close friends, but it can be offensive if used in formal settings or towards strangers. As a verb, "to fool" is generally neutral in formality when meaning to trick, but "to fool around" is informal. Always consider your audience and the situation.

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よくある間違い

A common mistake is confusing the noun "fool" with the adjective "foolish" (e.g., saying "He is fool" instead of "He is a fool" or "He is foolish"). Another error is underestimating the potential for "fool" to be insulting, even when not intended as such. Sometimes, using "fool" as a verb when a more precise word like "trick" or "deceive" might be better.

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覚え方のコツ

Imagine a 'FOOL' wearing a funny hat with bells, making silly faces. The 'F' for 'Funny' and 'O' for 'Oops!' reminds you of silly mistakes or jester-like behavior.

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語源

The word "fool" comes from the Old French "fol," meaning "madman, insane person, idiot." This in turn derived from the Latin "follis," which originally meant "bellows, leather bag," and later developed the sense of "windbag, empty-headed person."

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文化的な背景

In Western literature and folklore, the "fool" (or jester) often holds a unique position, allowed to speak truth to power or highlight societal flaws through humor and apparent stupidity. April Fool's Day is a global tradition where people play pranks and jokes on each other, embodying the playful aspect of "fooling."

例文

1

I felt like a complete fool when I realized I had left my wallet at home.

everyday

I felt like a complete fool when I realized I had left my wallet at home.

2

In Shakespearean plays, the fool often provides insightful commentary disguised as jest.

formal

In Shakespearean plays, the fool often provides insightful commentary disguised as jest.

3

Don't let him fool you with his charming smile; he's not always trustworthy.

informal

Don't let him fool you with his charming smile; he's not always trustworthy.

4

To dismiss the empirical evidence without proper scrutiny would be the act of a true fool.

academic

To dismiss the empirical evidence without proper scrutiny would be the act of a true fool.

語族

名詞
fool, foolishness
動詞
fool
形容詞
foolish

よく使う組み合わせ

play the fool behave in a silly way
make a fool of oneself act stupidly and cause embarrassment
April Fool's Day a day for playing pranks
act the fool behave foolishly
no fool a shrewd or clever person

よく使うフレーズ

April Fool's!

Used after playing a prank on April 1st

A fool and his money are soon parted.

People who are not careful with money soon lose it.

Fool me once, shame on you; fool me twice, shame on me.

It's your fault if you trick me once, but my fault if I let you trick me again.

No fool like an old fool.

Older people should know better than to act foolishly.

よく混同される語

fool vs idiot

"Idiot" suggests a fundamental lack of intelligence, often implying a lower IQ. "Fool" often describes someone who acts stupidly or unwisely in a specific situation, even if they are generally intelligent.

fool vs stupid

"Stupid" is an adjective describing a lack of intelligence or common sense, or a foolish action. "Fool" is primarily a noun for the person, or a verb for the action of deceiving.

fool vs dunce

A "dunce" is someone considered slow at learning, often in an academic context. While related to foolishness, "dunce" specifically refers to academic slowness, whereas "fool" is broader.

文法パターン

Subject + be + a fool (e.g., "He is a fool.") Subject + make a fool of + Object/reflexive pronoun (e.g., "She made a fool of herself.") Subject + fool + Object (e.g., "You can't fool me.")
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Consider the context of 'fool'

Its meaning can range from a lighthearted tease to a serious insult depending on tone and situation. Always assess your audience.

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Use 'fool' with caution

Be careful using "fool" in formal settings or with strangers, as it can easily be perceived as rude or disrespectful, even if not intended.

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'Fool' in different cultures

In some cultures, publicly calling someone a "fool" might be seen as a grave insult, leading to significant social repercussions or conflict.

自分をテスト

fill blank

Choose the best word to complete the sentence.

Don't be a ___ and forget your umbrella; it's supposed to rain today.

✓ 正解! ✗ おしい! 正解: a

"Fool" fits best here to describe someone acting unwisely by forgetting an umbrella before rain.

multiple choice

Select the sentence where "fool" is used as a verb.

Which sentence uses "fool" as a verb?

✓ 正解! ✗ おしい! 正解: b

In option (b), "to fool" means "to trick or deceive," indicating verb usage.

sentence building

Create a sentence using the word "fool" to describe someone who made a silly error.

Use "fool" in a sentence about a silly mistake.

✓ 正解! ✗ おしい! 正解: a

This sentence directly uses "fool" as a noun to describe a person who made a silly error.

🎉 スコア: /3

よくある質問

4 問

Not always. While it often implies stupidity or poor judgment, it can be used playfully among friends or refer to a jester whose role was to entertain.

"A fool" is a noun, referring to the person. "Foolish" is an adjective, describing an action or characteristic of being silly or unwise.

Yes, as a verb, "to fool" means to trick or deceive someone (e.g., "Don't try to fool me"), or to behave in a silly, playful way (e.g., "They were just fooling around").

It can be, depending on context and tone. When used seriously to describe someone's intelligence, it's insulting. When used lightly or playfully, it's less harsh.

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