# File lib/wordnet/synset.rb, line 453
                def serialize
                        @mutex.synchronize( Sync::SH ) {
                                return [
                                        @filenum,
                                        @wordlist,
                                        @pointerlist,
                                        @frameslist,
                                        @gloss
                                ].join( WordNet::Delim )
                        }
                end