Question

What is the meaning of a red wavy underline that appears under text in a publication?

Answer 1

It is a misspelling.
If you misspell a word the red wavy line will appear and give a suggestion when right clicked.

Answer 2

Answer:

The answer is "Misspelled word is red wavy underline."

Explanation:  

• The red wavy emphasis is the misspelling in Microsoft Word. It also involves adding a new word in a document parser and other text editors.  
• Red wavy underline typically is used as a spelling mistake, mistake form and missed word for correcting the term.
• To right-click on the word to correct these words, and it will list suggestive words in which we select an appropriate word.