yellow light
Proposed by a contributor, not yet supported by evidence.
Meaning · English
a warning or caution signal
Literally: a light with a yellow color
Where it’s used:
Used
Widespread English
Examples
The investor saw the company's financial troubles as a yellow light to slow down the project.
AI-drafted example auto-approved by rule (illustrative, not a corpus attestation)
Sources & notes
Listed in Wiktionary’s “English idioms” category (retrieved 2026-07-29); definition pending editorial review. Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-07-31; pending editor spot-check.
Common questions
What does “yellow light” mean?
a warning or caution signal Literally: a light with a yellow color
Is “yellow light” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.