Mayday

communications signal May·day \ ˈmā-ˌdā \

Definition of Mayday

used as a distress call in international radio-telephone communications

Origin and Etymology of mayday

French m'aider help me


May Day

noun \ ˈmā-ˌdā \

Definition of May Day

: May 1 celebrated as a springtime festival and in some countries as Labor Day

First Known Use of may day

13th century

in the meaning defined above

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MAYDAY Defined for English Language Learners

May Day

Definition of May Day for English Language Learners

  • : May 1 celebrated in many countries as a spring festival and in some countries as a holiday in honor of working people


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