Mayday Meaning in the Cambridge English Dictionary
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Meaning of “Mayday” in the English Dictionary

"Mayday" in British English

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Maydaynoun [S], exclamation

uk   us   /ˈmeɪ.deɪ/
a ​specialradiosignalsent from a ​ship or an ​aircraft when it ​needshelp
(Definition of Mayday from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"mayday" in American English

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maydaynoun [C]

 us   /ˈmeɪˌdeɪ/
a ​call for ​helpsent from a ​ship or ​aircraft by ​radio, esp. in an ​emergency
(Definition of mayday from the Cambridge Academic Content Dictionary © Cambridge University Press)
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