Multiword expressions in russian thesauri RuThes and RuWordnet

We present the types or multiword expressions included into the thesaurus or Russian language RuThes. Maoy of these expressions may look like compositiomd expressions but have specific relations that can be useful in appllcatlons. The rela· tion system or the RuThes thesaurus allows natural description of relations between an expression and its components if necessary. Transforming the RnThes knowledge into the Princeton WordNet structure for creating Russian wordnet (RuWordNet), we tronsfer also all the described expressions into the new resource and propose to automatically introduce additional relations for their better representation.