n.
Function: transitive verb
Inflected Form: flagged ; flag · ging
Date: 1856
1 : to signal with or as if with a flag especially : to signal to stop < flagged the train> ― often used with down
2 : to mark or identify with or as if with a flag < flagged potential problems in the proposal>
3 : to call a penalty on : PENALIZE <a lineman flagged for being offside>