Mayday

Definitions of Mayday
1

n an internationally recognized distress signal via radiotelephone (from the French m'aider)

Type of:
distress call, distress signal
an internationally recognized signal sent out by a ship or plane indicating that help is needed

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.