Phrasal verbs starting with "flag"
3 phrasal verbs use this verb
flag away
C1
To signal with a flag or hand gesture for someone or something to move away or continue.
flag down
B1
To signal a moving vehicle to stop, usually by waving one's arms or hand.
flag up
B2
To draw attention to something, especially a problem, issue, or concern, so that it can be dealt with.