passing light


Definition of passing light

: a strong red light to warn passing airplanes displayed usually in the leading edge on an airplane flying after dark

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for passing light

passing entry 1

Keep scrolling for more

Learn More about passing light

Statistics for passing light

Cite this Entry

“Passing light.” Dictionary, Merriam-Webster, Accessed 27 Nov. 2020.

Comments on passing light

What made you want to look up passing light? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!