2 verb
re‧search2 [intransitive and transitive]
1SE to study a subject in detail, especially in order to discover new facts or test new ideas [↪ investigate]:
He's been researching material for a documentary.
research into
Ten years ago I began researching into the role of women in trade unions.
2 to get all the necessary facts and information for something:
This book has been very well researched.
researcher noun [countable]

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