line of sight

noun phrase

1
: a line from an observer's eye to a distant point
2
: the line between two points
specifically : the straight path between a transmitting antenna (as for radio or television signals) and a receiving antenna when unobstructed by the horizon

Examples of line of sight in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
According to a report from The War Zone, the M1E3 could also deploy small drones and other unmanned aerial systems to hit targets beyond its line of sight. Chris Young, Interesting Engineering, 24 Oct. 2025 Customers in Texas and Arizona can receive parcels from the flying delivery liaisons, and Amazon has received beyond visual line of sight (BVLOS) permissions from the Federal Aviation Administration (FAA), which means the drones can, theoretically, start to scale for delivery. Meghan Hall, Sourcing Journal, 22 Oct. 2025 In the rooms that face Ipanema Beach, the bed is always positioned to have a direct line of sight to the ocean. Hannah Walhout, Travel + Leisure, 18 Oct. 2025 An engineer with a litter-picker grabbed the fallen cloth and sheepishly moved it behind the machine, out of my line of sight. Billy Perrigo, Time, 14 Oct. 2025 See All Example Sentences for line of sight

Word History

First Known Use

1559, in the meaning defined at sense 1

Time Traveler
The first known use of line of sight was in 1559

Browse Nearby Words

Cite this Entry

“Line of sight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/line%20of%20sight. Accessed 30 Oct. 2025.

Medical Definition

line of sight

noun
1
: a line from an observer's eye to a distant point
2
Last Updated: - Updated example sentences
Love words? Need even more definitions?

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