flag down
Use a flag or similar kind of signal to get someone's attention.
Near-synonyms: hail, signal
ADJ
national
chequered
The racing driver crossed the finish line as the chequered flag waved above the track.
tattered
The old tattered flag outside the museum fluttered in the strong wind.
VERB + FLAG
fly, hang (out), hoist, raise, run up
The protesters decided to raise a flag outside the town hall to show their support.
lower
wave
The children waved flags excitedly when the parade finally arrived at our street.
unfurl | carry
FLAG + VERB
hang
flap, flutter, fly, wave
The French flag flew proudly above the government building during the national celebration.
be/fly at half mast
FLAG + NOUN
pole (also flagpole)
PREP
under a/the ~
The company operates under a French flag even though its headquarters are in Germany.
~ of
The soldiers carried a flag of surrender as they walked toward the enemy camp.