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Words and Their StoriesLearning Expressions with VOA
Processed with VS1Talk about approval to begin, clear signals to stop, and warnings that deserve attention.
VOA source audio
Source: VOA Learning English · Words and Their Stories
View original article & transcriptTraffic signals provide the image for these expressions. A green light or greenlight gives permission to proceed; a red light means stop, while a red flag warns that something may be wrong.
Cultural note: “A wink and a nod” can imply a subtle or unofficial signal, sometimes one meant to avoid saying something openly. For important decisions, ask for clear approval rather than assuming that a gesture is authorization.
Keep exploringOne signal says “go,” another says “stop,” and a warning flag says “look closer.” The colors help speakers describe permission and risk.
Phrase guide · 5 expressions
Original explanations and examples, created for learners. Save a card for later or hear the phrase spoken by your browser.
Describe approval or authorization to begin.
Meaning
Receive permission or approval to begin a plan or project.
Tone & use
“Green light” is a noun; “greenlight” is also a verb. In ordinary use, the approval should come from someone with authority to give it.
Example
“The library got the green light to stay open later during exam week.”
Meaning
Permission or approval to proceed.
Tone & use
A noun often used with “get,” “give,” or “receive.” The source article notes that “go-aheaded” is not a correct past tense; say “got the go-ahead.”
Example
“Once the venue gave us the go-ahead, we could invite the speakers.”
Separate a directive to stop from a warning sign.
Meaning
Order that an action stop or prevent it from continuing.
Tone & use
Less common than “greenlight.” It can refer to a formal decision to halt a project or activity.
Example
“The safety review put a red light on the launch until the equipment was checked.”
Meaning
A warning sign that a problem or risk may exist.
Tone & use
A caution, not proof by itself. Use it to prompt closer attention rather than to claim wrongdoing without evidence.
Example
“A request to skip the required inspection was a red flag for the project manager.”
Recognize an indirect or unofficial hint.
Meaning
A subtle or sly signal used to communicate something indirectly.
Tone & use
May suggest a private understanding or unofficial permission. It can carry an implication of secrecy, so it is not a substitute for clear consent.
Example
“The organizer wanted written approval, not just a wink and a nod in the hallway.”
Knowledge check
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