mayday
US
UK mayday, Mayday n: (distress signal)
SC 无线电求救信号 wú xiàn diàn qiú jiù xìn hào
The ship's captain heard several maydays from the area.
mayday, Mayday interj: (help, SOS)
SC 救命 jiù mìng
Mayday! Mayday! Is anyone out there?
May Day n: (1st May: holiday)
SC 五一劳动节 wǔ yī láo dòng jié
Most of the world celebrates workers on May Day; the United States has Labor Day in September.