I wanted to buy an Oxford English Dictionary/Thesaurus combo and an Oxford American Dictionary/Thesaurus or a Webster's Dictionary/Thesaurus combo. I didn't want to spend too much money on books but I'd like to have a print guide of both American terms and English terms. Do both English and American dictionaries vary? Does one dictionary have different terms? Can someone help me decide? I know I can look words up on the Internet but I like to keep off of the Internet as much as possible when I'm writing. Edit: I notice I can't find an Oxford English Thesaurus but Oxford makes an American Thesaurus. Webster makes a Dictionary/Thesaurus combo but I've heard Oxford is more credible of a dictionary than Oxford. I'm not sure which one to choose.