| Engelsk navneord: loon | 
| 1. | loon (om person) a worthless lazy fellow | 
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 | Mindre specifikke termer | bum, do-nothing, idler, layabout, loafer | 
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| 2. | loon (om dyr) large somewhat primitive fish-eating diving bird of the northern hemisphere having webbed feet placed far back; related to the grebes | 
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 | Termer med samme betydning (synonymer) | diver | 
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 | Mindre specifikke termer | gaviiform seabird | 
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 | Tilhører disse overordnede termer | Gavia, genus Gavia | 
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| 3. | loon (om person) a person with confused ideas; incapable of serious thought | 
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 | Termer med samme betydning (synonymer) | addle-head, addlehead, birdbrain | 
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 | Mindre specifikke termer | misfit | 
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