noun[mass noun] (also researches)
late 16th century: from obsolete French recerche (noun), recercher (verb), from Old French re- (expressing intensive force) + cerchier 'to search'
The traditional pronunciation in British English puts the stress on the second syllable, -search. In US English the stress is reversed and comes on the re-. The US pronunciation is becoming more common in British English and, while some traditionalists view it as incorrect, it is now generally accepted as a standard variant of British English.