Noun:
1: research systematic investigation to establish facts
2: inquiry, enquiry, research a search for knowledge; "their pottery deserves more research than it has received"
Verb:
1: search, explore, research 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"
2: research attempt to find out in a systematically and scientific manner; "The student researched the history of that word"