Noun: Mayday 'mey,dey
- An internationally recognized radio distress signal used to signal life-threatening emergencies
"The pilot issued a Mayday call when the engine failed"
- Observed in many countries to celebrate the coming of summer; observed in Russia and related countries in honour of labour
- First of May, May 1
Derived forms: May Days, Maydays
Type of: day, distress call, distress signal
Part of: May
Encyclopedia: Mayday
May Day, Kansas