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Noun: Mayday  'mey,dey
  1. An internationally recognized radio distress signal used to signal life-threatening emergencies
    "The pilot issued a Mayday call when the engine failed"
Noun: May Day  mey dey
  1. 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