Intelligent Vocabulary: linked phrases and phrases Certainty (as) crystal clear as day idiom (as) absolutely sure as eggs is eggs idiom and that's flat! idiom guarantee someone of a thing assured decidedly deffo definite surely definitive inviolably ironclad irrefutable irrefutably make no error (about this) idiom unquestionably unreserved unreservedly watertight https://rent87542.wikissl.com/796139/everything_about_for