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.
Importantly, the drones were operated beyond visual line of sight (BVLOS), meaning drone operators didn’t need to keep visual contact with the drones. — Christopher McFadden, Interesting Engineering, 10 Oct. 2026 Positioned directly within the driver's line of sight, the display is split into several sections. — New Atlas, 7 Oct. 2026 These events are called quasars, but when the jets are directed straight down our line of sight, the quasar is classified as a blazar. — Robert Lea, Space.com, 7 Oct. 2026 Those experiential areas will include a congregating section at field level, a playground with a direct line of sight to the pitch, and a bar in the supporters’ section that will also have a view of the game. — Kyle Newman, Denver Post, 1 Oct. 2026 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

Rhymes for line of sight

See All Rhymes for line of sight

Browse Nearby Words

line of scrimmage
line of sight
line of site
See all Nearby Words

Cite this Entry

“Line of sight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/line%20of%20sight. Accessed 20 Oct. 2026.

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Medical Definition

line of sight

noun
1
: a line from an observer's eye to a distant point
2
: line of vision
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