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observed
mastery/əbˈzɝvd/adj
card 1 of 7 · synonym
Which option is closest in meaning to 'observed' in this context?
Over the past decade, researchers have observed a significant decline in the population of migratory birds.
card 1 of 7 · synonym
Which option is closest in meaning to 'observed' in this context?
Over the past decade, researchers have observed a significant decline in the population of migratory birds.