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

In March 2026, a dramatic blood moon lunar eclipse will rise in full view and in our line of sight. —Valerie Mesa, PEOPLE, 4 Sep. 2025

Unlike optical systems, which need a clear line of sight, acoustic sensors can pick up what’s happening around corners or in crowded streets. —Neetika Walter, Interesting Engineering, 1 Sep. 2025

An intriguing solution could be Wi-Charge, which offers true wireless charging via transmitters from the mains that have line of sight to the device. —Benny Har-Even, Forbes.com, 31 Aug. 2025

Betts was well to the left of home plate, not in Hernandez’s direct line of sight. —Bill Plunkett, Oc Register, 31 Aug. 2025

Word History

First Known Use

1559, in the meaning defined at sense 1

Rhymes for line of sight

• actinolite
• adipocyte
• amphibolite
• anorthosite
• anthophyllite
• aragonite
• carbonatite
• cassiterite
• cristobalite
• crocidolite
• diatomite
• dithionite

Medical Definition

line of sight

noun

1

: a line from an observer's eye to a distant point

2

: line of vision