Home › Words › O › overarcheroverarcheroverarcher means A dominating idea that covers something; a overarching theme.Among words judged in Lexicurio's Arena, overarcher ranks #23,631 of 42,752 for Qualifying.EtymologyFrom overarching and -er.nounA dominating idea that covers something; a overarching themeDefinitions & examples from Wiktionary (CC BY-SA 3.0).