line of sight

American  

[lahyn uhv sahyt] / ˈlaɪn əv ˈsaɪt /

noun

1. Also called line of sighting.  an imaginary straight line running through the aligned sights of a firearm, surveying equipment, etc.

2. Astronomy. an imaginary line from an observer to a celestial body, coincident with the path traveled by light rays receivedfrom the body.

3. Radio. a straight line connecting two points sufficiently high and near one another so that the line is entirely above the surface of the earth.

4. Ophthalmology. line of vision.

5. sightline.

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line of sight British  

noun

1. the straight line along which an observer looks or a beam of radiation travels

2. ophthalmol another term for line of vision

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Etymology

Origin of line of sight

First recorded in 1550–60

Example Sentences

These objects sat in my line of sight as I dressed for school and did my homework.

From The Wall Street Journal

Companies with a clear line of sight on AI profits are being rewarded, while those with weaker balance sheets and debt-paced business models are losing ground.

From Barron's

The lack of a clear line of sight to partnership is making them more likely to move on.

From The Wall Street Journal

I move the crust out of its line of sight, only for it to give another excited “Woo!”

From Literature

The company said Tuesday that its cardiac ablation products have a “near-term line of sight” to adding $1 billion in revenue to its base business.

From Barron's