2. The word processing system of claim 1, further including a thesaurus list of root words having at least one synonym for each said root word, and a second list of properly-spelled words together with marker means therein, presence of said marker means identifying discrete words of said second list as being duplicates of words in said thesaurus list of root words.
4. The word processing system of claim 2, wherein said second list comprises a spelling dictionary and said marker means is a discrete code following the last character of each word in said second list duplicating a word in said thesaurus list.