nines
n.— «Priding itself on its “five-nines” reliability pedigree—VeriSign’s uptime performance of running dot-net and dot-net is 100 percent—the company is guaranteeing the same reliability for operator customers.» —“VeriSign expands networks in Asia” by Jeanne Lim in Singapore ZDNet Asia June 21, 2006. (source: Double-Tongued Dictionary)