observation
B2Frequent NGSL-2UK /ˌɒbzəˈveɪʃn/US /ˌɑːbzərˈveɪʃn/
Meaning
noun
the act of watching somebody/something carefully for a period of time, especially to learn something
“Most information was collected by direct observation of the animals' behaviour.”
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Most information was collected by direct observation of the animals' behaviour.
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