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English definition of “observe”

observe

verb [T] uk   /əbˈzɜːv/ us    /-ˈzɝːv/

observe verb [T] (WATCH)

B2 formal to watch carefully the way something happens or the way someone does something, especially in order to learn more about it: The role of scientists is to observe and describe the world, not to try to control it. [+ question word] He spent a year in the jungle, observing how deforestation is affecting local tribes. Children learn by observing adults.Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptive

observe verb [T] (NOTICE)

C1 formal to notice or see: Jack observed a look of anxiety on his brother's face. [+ question word] The guards failed to observe who delivered the package. [+ that] In all these films one observes that directors are taking a new interest in Native American culture. [+ infinitive without to] A teacher observed her climb over the gate.Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptive

observe verb [T] (SAY)

formal to make a remark about something: [+ speech] "I've always found German cars very reliable," he observed. [+ that] She observed that it would soon be time to stop for lunch.Saying and utteringSaying again

observe verb [T] (OBEY)

C2 formal to obey a law, rule, or custom: People must observe the law. Nobody should be an exception. The old people in the village still observe the local traditions. Do you observe Passover?Obeying and breaking the lawObedient and compliantDisobedientBad and wrong behaviourCustom, tradition and conformity
observable
adjective uk   /-ˈzɜː.və.bl̩/ us    /-ˈzɝː.və.bl̩/
There's no observable connection between the two events.VisibleApparent and obvious
observably
adverb uk   /-ˈzɜː.və.bli/ us    /-ˈzɝːː.və.bli/
VisibleApparent and obvious
(Definition of observe from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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