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

Wall Street does not have a clear line of sight on revenue for some of these projects, which substitute upfront capital spending for multi-year operating expenses, as the Bank of International Settlements (BIS) noted in a March analysis . — Tobias Burns, CNBC, 28 Sep. 2026

However, their effectiveness can depend on weather, visibility, line of sight, and the amount of time the beam can remain focused on a target. — Kaif Shaikh, Interesting Engineering, 25 Sep. 2026

For example, having line of sight into the health of all endpoints in the field, such as through mobile device management, brings a proactive approach to uptime. — Rick Elliott, Forbes.com, 16 Sep. 2026

Somewhere between you and that star, another star happens to pass almost directly across your line of sight. — Thomas Fauchez, The Conversation, 14 Sep. 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