What does “flag” mean?
- 1
nouna piece of cloth with a colored design that represents a country or group
The national flag was flying over the building.
- 2
verbto mark something so people notice it, often as a problem
The system flagged the payment as suspicious.
- 3
verbto become tired, weaker or less interested
Interest in the project began to flag.
Flag at a glance
- Part of speech
- noun & verb
- CEFR level
- B1 (intermediate)
- Pronunciation
- /flæɡ/ · FLAG
- Forms
- flagged, flagging
How to use “flag” correctly
A “red flag” is a warning sign of a problem. “Flagging” = becoming weaker: “flagging sales”.
Common phrases with “flag”
- red flag
- raise a flag
- flag up
- flagging energy
Synonyms, opposites and related words
Synonyms (similar meaning)
- banner
- mark
- weaken
“flag” is on these word lists
Learn these words next
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- court nounB1the place where a judge decides legal cases, or the judge and officials themselves