| English noun: observation | 
| 1. | observation (act) the act of making and recording a measurement | 
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 | Broader (hypernym) | measure, measurement, measuring, mensuration | 
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 | Narrower (hyponym) | radio observation | 
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| 2. | observation (act) the act of observing; taking a patient look | 
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 | Synonyms | observance, watching | 
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 | Broader (hypernym) | look, looking, looking at | 
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 | Narrower (hyponym) | monitoring, sighting, stargazing | 
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| 3. | observation (communication) a remark expressing careful consideration | 
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 | Synonyms | reflection, reflexion | 
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 | Broader (hypernym) | comment, input, remark | 
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 | Instance hyponym | Parkinson's law, Parkinson's law | 
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| 4. | observation (cognition) facts learned by observing | 
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 | Samples | He reported his observations to the mayor. 
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 | Broader (hypernym) | fact | 
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 | Narrower (hyponym) | scientific fact | 
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| 5. | observation (cognition) the act of noticing or paying attention | 
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 | Samples | He escaped the notice of the police. 
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 | Synonyms | notice, observance | 
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 | Broader (hypernym) | attending, attention | 
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 | Narrower (hyponym) | mind, remark | 
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