Use Auto-Correction
- Open the Settings app.
- Tap General > Keyboard.
- Turn on Auto-Correction. By default, Auto-Correction is on.
How do I stop my iPhone from auto correcting certain words?
To turn off autocorrection on an iPhone or iPad, open Settings > General > Keyboard and switch the feature off. You can do the same on Macs by going to Apple > System Preferences > Keyboard > Text and unchecking Correct spelling.