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.
Buildings, trees and hills along the horizon will block your line of sight to the planets sitting lowest in the sky. Ryan Brennan, Kansas City Star, 19 Feb. 2026 Called HoloRadar, the system enables robots to reconstruct three-dimensional scenes outside their direct line of sight, such as pedestrians rounding a corner. Prabhat Ranjan Mishra, Interesting Engineering, 16 Feb. 2026 Yet, the center of our galaxy is in the direction of Sagittarius, whose innumerable stars, together with those of adjacent constellations, pile up along our line of sight to create the magnificent summer Milky Way. Joe Rao, Space.com, 8 Feb. 2026 From further out, not only are there fewer examples, but a range of harder-to-capture details — such as ball speed, the goalkeeper’s weight shifting and whether defenders obscure their keeper’s line of sight — play a much greater role. Conor O'Neill, New York Times, 5 Feb. 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

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 23 Feb. 2026.

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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