What does a red wavy line represent?

Answer 1

The wavy blue (or green) underline in Word is used to indicate a grammatical error (as compared to the red underline for a misspelling). The computer program may or may not be right; it's worth looking at it, but sometimes you actually do want to phrase yourself the way you did, despite the objection of the Word program.

Answer 2

The red wavy line underlining a word means that is is misspelled. If you right click on the word, the program will offer suggested correct spellings that it thinks you meant - if you click on one, Word will replace it for you.

If you get a green squiggly instead, this is a grammar error. Right clicking will not allow you to correct the error automatically, but it will still offer help in what needs to be changed.

Answer 3

Spelling is incorrect You can left-click on the word, and it will give you the correct spelling option(s).