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

Traffic mitigation measures included planting tall trees and striping the road entrances red to preserve drivers’ line of sight. —Nollyanne Delacruz, Mercury News, 15 Mar. 2026

Leon exited the squad and, after determining there was no one else in his line of sight, fired four shots at Bellaphant. —Mara H. Gottfried, Twin Cities, 9 Mar. 2026

To determine any position, a GPS typically needs a line of sight from four satellites. —Katie Hunt, CNN Money, 6 Mar. 2026

The firm also found existing vegetation on the north side of the road would need to be cleared to create a clear line of sight at the intersection. —Jenna Ebbers, Kansas City Star, 4 Mar. 2026

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