verb ·Rare ·Advanced level

Definitions

Verb

1. 1
   To mark or identify something as suspicious, problematic or worthy of further scrutiny or immediate action. figuratively, transitive
2. 2
   To halt a race or session immediately due to unsafe conditions. figuratively, transitive

Example

More examples

"Yanni's red-flag meter has gone off."

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.