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

The rocky beaches around the amphitheater offer a clear line of sight of the Starship launch pad, and there are often spectators on boats out of nearby Port Isabel offering a picturesque view. — Tariq Malik, Space.com, 15 July 2026

Echodyne also supplies sensors for autonomous systems operating beyond visual line of sight. — Aamir Khollam, Interesting Engineering, 9 July 2026

Nothing out of the line of sight had a Used By date past 2015. — New Atlas, 7 July 2026

Step into your boss’ line of sight as Mars and Pluto harmonize! — Usa Today, USA Today, 5 July 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
• chalcopyrite
• cristobalite
• crocidolite
• diatomite

Medical Definition

line of sight

noun

1

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

2

: line of vision