line of sight

[lahyn uhv sahyt]

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.

line of sight

noun

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

2. ophthalmol another term for line of vision

Word History and Origins

Origin of line of sight¹

First recorded in 1550–60

Example Sentences

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

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

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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.

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But the way the law reads now, with references to impacting on play, the line of sight or interfering with the goalkeeper, you can be deeper than the last defender and ruled onside.

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If and when the Big Tech companies drive more AI-related revenues, “we think investors will have a clearer line of sight to facilitate unsecured debt issuance,” Patkar wrote.

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