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bn:00051334n
Noun Concept
EN
line of sight  line of vision  sightline
EN
An imaginary straight line along which an observer looks WordNet 3.0
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An imaginary straight line along which an observer looks WordNet 3.0 & Open English WordNet
A straight line along which an observer has a clear view. Wiktionary
A line between an observer or a piece of optical equipment and an object of interest; line of sight. Wiktionary
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WordNet 3.0 & Open English WordNet
Wiktionary