Noun
(sumo) The highest rank of sumo wrestler, above ozeki; grand champion.
(sumo) A person holding the rank, either competing at the rank or retired after having achieved it.
Source: en.wiktionary.orgIt was easy sailing for the Mongolian-born yokozuna in a quick win over No. 4 maegashira Abi (4-4) that left Hakuho leading two wrestlers with 7-1 records. Source: Internet
If a yokozuna is defeated by a lower-ranked wrestler, it is common and expected for audience members to throw their seat cushions into the ring (and onto the wrestlers), though this practice is technically prohibited. Source: Internet
Mr. Fuji then challenged Hulk Hogan, who had come out to help Bret Hart, to compete for the title; Hogan then won his fifth WWF Championship from Yokozuna. Source: Internet
Thus, wrestling starts in the morning with the jonokuchi wrestlers and ends at around six o'clock in the evening with bouts involving the yokozuna. Source: Internet
Half of the last six wrestlers promoted to ōzeki have been foreign born and a Japanese has not been named yokozuna since 2003. Source: Internet
In general, an ōzeki must win the championship for two consecutive tournaments or an "equivalent performance" to be considered for promotion to yokozuna. Source: Internet