flag down
Proposed by a contributor, not yet supported by evidence.
Meaning · English
to signal or stop something, like a vehicle, by waving a flag or arm
Nghĩa · Tiếng Việt
Dừng hoặc tín hiệu cho một thứ gì đó bằng cách vẫy tay hoặc cờ
Machine-translated — suggest a fix
Literally: to lower a flag
Where it’s used:
Used
Widespread English
Examples
She flagged down a taxi on the street
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 2026-07-30; pending editor spot-check.
Common questions
What does “flag down” mean?
to signal or stop something, like a vehicle, by waving a flag or arm Literally: to lower a flag
Is “flag down” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.