mayday.
An international distress signal used by shipping and aircraft.
Meaning & usage
An international distress signal used by shipping and aircraft.
Where this word comes from
From the distress signal mayday, from French m'aider, short for Venez m'aider! (“Come to help me!”). The term was conceived in the early 1920s by Frederick Stanley Mockford, officer-in-charge of radio at Croydon Airport in England. He had been asked to think of a word that would indicate distress and would easily be understood by all pilots and ground staff in an emergency. Since much of the air traffic at the time was between Croydon and Le Bourget Airport in Paris, he proposed the term "mayday," the phonetic equivalent of the French m'aider.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.