Clever Vocabulary: related words and phrases and phrases Certainty (as) very clear as day idiom (as) certain as eggs is eggs idiom and that is flat! idiom guarantee another person of a little something confident decidedly deffo definite surely definitive inviolably ironclad irrefutable irrefutably make no miscalculation (about this) idiom https://becketthaqes.wikiexcerpt.com/2943761/apartment_things_to_know_before_you_buy