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Words and Their StoriesLearning Expressions with VOA
Processed with VS1Learn a warning idiom and discuss trust without turning suspicion into an accusation.
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Source: VOA Learning English · Words and Their Stories
View original article & transcriptThe episode explores “a snake in the grass,” an idiom for a person or danger that appears hidden or untrustworthy. It also discusses related language for caution and suspicion. The expression communicates a judgment, so in real situations it is more responsible to identify specific behavior and evidence than to label someone.
Cultural note: Do not use an idiom as proof of wrongdoing. Describe what happened, what remains uncertain, and what evidence supports a concern. The phrase uses a snake as a negative metaphor; it is figurative language, not a claim about actual snakes or their behavior.
Keep exploringA vivid idiom can make suspicion sound like a fact. Learn the phrase—and a more careful way to explain what concerns you.
Phrase guide · 4 expressions
Original explanations and examples, created for learners. Save a card for later or hear the phrase spoken by your browser.
Understand the warning image behind the expression.
Meaning
A person or danger believed to be hidden and untrustworthy.
Tone & use
Strongly negative and accusatory. For real situations, state the specific behavior and evidence instead of using a label.
Example
“She did not call her colleague a snake in the grass; she explained that the shared files had been altered without notice.”
Describe specific conduct instead of making a sweeping claim.
Meaning
Something feels unusual or possibly wrong, although the reason may not be clear yet.
Tone & use
A cautious way to express a concern without claiming certainty.
Example
“Something seems off about the invoice, so I will verify the account number before paying.”
Express concern without overstating what you know.
Meaning
Watch or monitor someone or something carefully.
Tone & use
Can be neutral or protective. Explain the reason if it might sound like distrust.
Example
“We kept an eye on the oven while the bread baked.”
Meaning
Stay alert to notice or avoid a possible problem; it can also mean care for someone.
Tone & use
The meaning depends on context: “look out for a hazard” means watch for it; “look out for a friend” can mean support them.
Example
“Please look out for a wet-floor sign near the entrance.”
Knowledge check
Choose the expression that best fits each situation.
Try it · Choose the best expression
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