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English definition of “observation”

observation

noun (NOTICING)    /ˌɒb.zəˈveɪ.ʃən/ US  /ˌɑːb.zɚ-/
B2 [U] the fact that you notice or see something: She has remarkable powers of observation (= is very good at noticing things).Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptive C1 [C] formal a remark about something that you have noticed: The book is full of interesting observations on/about the nature of musical composition. May I make an observation?Remarks and remarkingExpressing and asking opinions
(Definition of observation noun (NOTICING) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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