2449 合図: signal, sign: The conductor gave a signal for departure. 6338 時報: time signal: I set the clock hands to the radio time signal. 7592 電波: electromagnetic waves; radio waves: The cell phone signal is difficult to get here. 8564 点滅: flashing; flickering: Please stop when the signal is flashing. 9086 降伏: submission; surrender: The white flag is a signal of surrender.