A red squiggly line appearing under a typed word typically means the word is flagged as a spelling error by the software's spell checker. This visual cue indicates the program does not recognize the word as correctly spelled based on its dictionary. To fix or address red squiggly lines:
- Right-click the underlined word and select the correct spelling from the suggestions if it is misspelled.
- If the word is correctly spelled (like a name, brand, or specialized term), add it to the dictionary via the right-click menu to prevent future flagging.
- You can also change the language setting of the text if the red lines appear because the spell check is set to the wrong language.
- If preferred, disable spell check or the "check spelling as you type" feature in the program settings to stop the red lines from appearing (though this turns off the helpful spell checking feature).
These steps generally apply to common text editing software like Microsoft Word, email clients, and other text editors with built-in spell checkers.
