If you're sharing a document like a resume with someone, you might not want that person to see the red and blue lines. To hide spelling and grammar errors in a document: If you've turned off the automatic spelling and/or grammar checks, you can still go to the Review tab and click the Spelling & Grammar command to run a new check. For example, if you don't want Word to mark spelling errors, grammar errors, or frequently confused words automatically, simply uncheck the desired option. From here, you have several options to choose from.
On the left side of the dialog box, select Proofing.