Submitted by György Chityil ... on Fri, 01/19/2018 - 18:32 Hierarchy: Proper NounDescription: {{context|preceded by "the" or "The"}} Nickname of the prison on Alcatraz Island, USA.Ngram Text: RockSource: WiktionaryIssue: 0Wiktionary tag: preceded by "the" or "The"Ngram Count: 1Wikokit WikiText ID: 144121