In the article considering principles of allocation first part two-or double- in multiple words. handbooks providing principles of selection one part in multiple words. but these principles sometimes formulated ambiguous, for example how to use notional norms about things twoness, if multiple words with first parts two- or double- means 'twice" or quite or conflict with reality. Beside dictionary materials were analyzed: they also provide us contradictory reference, how to write multiple word. Nowdays usual writing of these words with first part two- double- don't corresponded handbooks and dictionaries references, that's why considered don't contrive new unworkable rules and compare datas from dictionaries and real writing for excluding from dictionaries not existed versions.