Englishfor English speakers
imaging
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noun
(= imagination)
the ability to form mental images of things or events
he could still hear her in his imagination
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noun
(medicine) obtaining pictures of the interior of the body
observation
Noun
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Observation is the act of carefully seeing things that happen.
To learn, you must be good at observation.
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An observation is something someone saw, heard etc.
In science, we record our observations so we can think about them later.