Many applications where you type content have a spelling checker, grammar checker, or both.
Often these errors are identified when you choose to run the checker, but other applications, including Google Slides, will also underline spelling mistakes as they are made.
This can be a helpful way to identify spelling errors when they are made, but you may find this behavior to be distracting, or you might have words that are being flagged which are spelled correctly, or are spelled incorrectly on purpose.
Fortunately you can adjust a setting in Google Slides so that the application stops underlining your spelling mistakes.
How to Remove the Red Underline from Spelling Mistakes in Google Slides
The steps in this article were performed in the desktop version of Google Chrome, but will also work in other desktop Web browsers like Firefox or Safari.
Step 1: Sign into Google Drive and open your presentation.
Step 2: Select the Tools tab at the top of the window.
Step 3: Choose the Spelling option, then click Underline errors to remove the check mark.
Now you should be able to go to a slide that previously had a red underlined spelling error, and it will no longer appear under the misspelling.
Note that this is a setting that applies across all of Google Slides in Google Drive. That means that the application will no longer underline any spelling mistakes that it finds in any of the presentations in your Google Account.