あかはた
noun
red flag
communication
1. red flag; danger flag
A red flag used as a signal, especially to warn of danger or to stop traffic, races, or swimming. Also a long-standing symbol of socialist and communist movements.
赤旗(あかはた)()られた
A red flag was waved.
踏切(ふみき)りで係員(かかりいん)赤旗(あかはた)()した
An attendant raised a red flag at the railroad crossing.
Because of the high waves, a red flag was raised at the beach.

A red flag signals danger or a command to stop. Contrast with the white or green flag that signals safety.

Common collocations

Usage

When read せっき, the same characters name the Japanese Communist Party's newspaper. The everyday reading for a physical warning flag is あかた.