How to Differentiate Thesaurus from Checking the spelling and grammar?

Answer 1

I'm not sure I understand what you mean by differentiate, but if you are using the grammar and spelling checker in Word, you have options. For instance, when the checker stops on questionable spelling and/or grammar, you can click to check grammar (uncheck if already checked). If you click on options on that page, you can choose your own rules by checking/unchecking the boxes. Hope this helps!