flaggen

In a sentence

• Die Seeleute begannen, die Signale zu flaggen.

  The sailors began flagging the signals.

  Here, 'flaggen' means to signal using flags, which is a common nautical term used for communication.

• Die Software flaggt verdächtige Aktivitäten automatisch.

  The software automatically flags suspicious activities.

  In this sentence, 'flaggen' refers to marking something for attention or as noteworthy, a usage in system monitoring and digital contexts.

• Beim Rennen wurde die gelbe Fahne als Signal geflaggt.

  The yellow flag was flagged as a signal during the race.

  Here, 'flaggen' is utilized to indicate the action of displaying a flag as a form of signaling or indication, particularly in sports or events.