Definition of blue ensign
: a nautical ensign with a blue field borne by various classes of vessels in British government service other than the Royal Navy, under certain conditions by merchantmen commanded by retired officers of the Royal Navy or by officers of the Royal Naval Reserve, and by many British yacht clubs and yachts — see ensign 1
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!
Seen and Heard
What made you want to look up blue ensign? Please tell us where you read or heard it (including the quote, if possible).