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.
Wing is one of a select few companies the FAA has allowed to conduct package delivery beyond visual line of sight in Dallas—meaning without human observers—as part of its efforts to develop new regulations and parameters specific to drones. Jessica Mathews, Fortune, 1 Oct. 2025 With a clear line of sight to a tower, some providers offer speeds up to 1 Gbps. Roxanne Downer, USA Today, 24 Sep. 2025 Saturn rotates on an axis tilted by 27 degrees, much as Earth does, so every 14-and-a-half years — half of its 29-year orbit — the planet’s tilt aligns the rings with the line of sight from Earth. Jamie Carter, Forbes.com, 20 Sep. 2025 Unfortunately, skywatchers in the northern hemisphere — North America, along with parts of Asia, India and South America — won’t be in the eclipse's line of sight this time. Valerie Mesa, PEOPLE, 18 Sep. 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 6 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
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