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English definition of “research”

research

noun [U, plural] uk   /rɪˈsɜːtʃ/ /ˈriː.sɜːtʃ/ us    /ˈriː.sɝːtʃ/ (also researches)
B1 a detailed study of a subject, especially in order to discover (new) information or reach a (new) understanding: scientific/medical research a research student/assistant/laboratory They are carrying out/conducting/doing some fascinating research into/on the language of dolphins. His researches in the field of disease prevention produced unexpected results.

research

verb [I or T] uk   /rɪˈsɜːtʃ/ us    /-ˈsɝːtʃ/
B2 to study a subject in detail, especially in order to discover new information or reach a new understanding: She's researching into possible cures for AIDS. Journalists were frantically researching the new prime minister's background, family, and interests.
researcher
noun [C] uk   /-ˈsɜː.tʃər/ us    /-ˈsɝː.tʃɚ/
B2 a television/political researcher
(Definition of research from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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