A combination dictionary and thesaurus in a single volume encompasses more than 61,000 dictionary entries--including three thousand new scientific, business, technical, and professional terms--accompanied by cross-references to thesaurus entries that listA combination dictionary and thesaurus in a single volume encompasses more than 61,000 dictionary entries--including three thousand new scientific, business, technical, and professional terms--accompanied by cross-references to thesaurus entries that list synonyms in the order of frequency of use and handy reference sections. Simultaneous. synonyms in the order of frequency of use and handy reference sections. Simultaneous.