Definition of range light
1 : either of two or more lights on shore placed to guide a ship by keeping it in line (as through a channel)
2a range lights plural : two white lights in the same vertical plane as the keel with one at least fifteen feet higher than and horizontally distant from the other that may be carried by a steamer under way to indicate her course b : the after of these two lights
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!
First Known Use of range light
Seen and Heard
What made you want to look up range light? Please tell us where you read or heard it (including the quote, if possible).