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Achilles’ Heel: Talking About a Weak Spot

Understand a classical expression for a vulnerability and use it without labeling someone as weak.

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Words and Their Stories · 5:03

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Source: VOA Learning English · Words and Their Stories

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The episode explains “Achilles’ heel” as a vulnerable point and connects it to the Greek hero. The lesson focuses on how to describe a specific weakness in a plan or system without turning it into a judgment about a whole person.

Cultural note: The heel story is part of later legend associated with the Trojan War; VOA notes that the familiar arrow detail is not actually written in Homer’s Iliad. Use “Achilles’ heel” for a vulnerability, not as a label that reduces someone to a weakness.

Keep exploringA plan can be strong overall and still have one vulnerable point. This expression helps name that risk precisely.

Phrase guide · 2 expressions

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Original explanations and examples, created for learners. Save a card for later or hear the phrase spoken by your browser.

Vulnerable points

Describe a specific weak point in a plan or system.

someone’s Achilles’ heel

Meaning

A particular weakness or vulnerability in an otherwise capable person, plan, or system.

Tone & use

The apostrophe may appear before or after the “s” depending on style. Use it for a specific vulnerable point, not to define a person by a flaw.

Example

“The backup generator was the building’s Achilles’ heel because it had not been tested.”

NegativeNeutral / idiomatic

a weak spot

Meaning

A point where someone or something is less strong or more vulnerable.

Tone & use

Clear, direct alternative to “Achilles’ heel.” It can refer to a skill, a plan, a structure, or an argument.

Example

“The audit found a weak spot in the password-reset process.”

NeutralNeutral

Knowledge check

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Choose the expression that best fits each situation.

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A well-designed service has one untested backup system. What could that be called?