#1 research n. systematic investigation to establish facts. wn
#2 research n. [inquiry, enquiry] a search for knowledge; "their pottery deserves more research than it has received". wn
#3 research v. attempt to find out in a systematically and scientific manner; "The student researched the history of that word". wn
#4 research v. [search, explore] inquire into; "the students had to research the history of the Second World War for their history project"; "He searched for information on his relatives on the web"; "Scientists are exploring the nature of consciousness". wn
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