Fix iPhone autocorrect that keeps changing the same word

When autocorrect fixates on one word, the problem almost always lives in the keyboard's learned dictionary, not in a bug that appears and disappears at random. Below are the questions readers ask most when a single word gets swapped over and over, with the specific steps that stop it.

Quick path: Settings > General > Transfer or Reset iPhone > Reset > Reset Keyboard Dictionary — this clears every learned correction at once if targeted fixes below don't hold.

Why does the keyboard keep changing the same word?

The keyboard builds a personal dictionary from typing history. Once it "learns" a correction for a misspelled or unusual word, that entry sticks and gets applied every time the word reappears, even in apps where it never belonged. A name, a slang term, or a technical word can get locked into the wrong form this way, and ordinary backspacing doesn't remove the underlying entry — it only fixes that one instance.

How do you add a word to Text Replacement so it stops getting swapped?

Open Settings > General > Keyboard > Text Replacement, tap the plus sign, and enter the word in both the "Phrase" and "Shortcut" fields. This tells the keyboard that the exact spelling is intentional, which overrides the automatic swap for that word going forward. This works well for proper nouns, brand names, or any term the dictionary insists on "fixing."

How do you remove a learned correction from the keyboard dictionary?

There's no menu that lists individual learned corrections, so the direct fix is to overwrite the bad habit by typing the correct spelling and tapping the "x" on the suggestion bubble that pops up above the word, rather than letting the space bar accept it. Doing this consistently for several entries retrains the prediction, though it can take repeated corrections before the swap stops for good.

Does resetting the keyboard dictionary fix repeated autocorrect errors?

Yes, and it's the most reliable fix when a word keeps reverting no matter how many times it gets corrected. Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Keyboard Dictionary. This clears all learned words and custom entries, which means Text Replacement shortcuts and any vocabulary the keyboard picked up from contacts or past typing get wiped too. Expect the keyboard to feel slightly less predictive for a few days afterward while it relearns common terms.

What if one app keeps misfiring but others don't?

If the swap only happens in a single app, check whether that app has its own in-app keyboard settings or a custom text field that overrides system-level suggestions — some messaging and note apps ship their own correction logic layered on top of iOS. If the behavior is system-wide, confirm autocorrection itself is still wanted: Settings > General > Keyboard has separate toggles for "Auto-Correction" and "Check Spelling," and turning off the first stops live swaps while leaving spelling underlines active for manual review.

Is there a faster fix than resetting everything?

For a single offending word, Text Replacement is faster and more surgical than a full reset, since it targets one term without wiping other learned shortcuts. Save the full dictionary reset for cases where several words are misbehaving at once or the keyboard seems to have picked up a pattern of bad corrections across multiple apps.