Apple’s Grey List: Words And Phrases Your iPhone Won’t Help You Spell

Independent researcher Derik Kauffman has found an encoded list of more than 100,000 words and phrases that Apple’s iPhone predictive-text system will not suggest or reliably complete, including terms about drugs, sexuality and politically sensitive subjects. Apple told The Guardian that its keyboard is designed to avoid inappropriate or offensive suggestions, while users can still type the words themselves.

The list, described in a report by The Guardian published November 6, 2026, is embedded in Apple’s operating system. Kauffman said he began investigating after noticing that his iPhone struggled to type some phrases using swipe typing, in which a user glides a finger across the keyboard, even as other words worked normally. The report does not identify the Apple operating-system version in which the list was found.

Among the reported restricted terms are “NSA spies,” “question your sexuality” and “on MDMA”. The list also includes political and social references such as “Dictator Trump,” “Trayvon Martin,” “Kashmir dispute,” “Muslim extremist” and “male chauvinist pig.” The Guardian reported that the system also restricts some phrases in other languages, including “the occupied territories” in Hebrew and “the Hamas movement” in Arabic.

These restrictions can affect how a swipe-typed phrase appears: The report gives “United Iceland” as a substitution for “United Ireland” and “Tibetan independences” for “Tibetan independence.” Apple’s stated position is that the keyboard avoids suggesting inappropriate or offensive language. The company also said users can enter particular words or phrases manually and override predictive suggestions.

How the list shapes typing

Predictive text influences more than spelling: it can shape which terms are easy to enter, especially when someone is swiping quickly or relying on the keyboard to complete a phrase. A restricted term may require extra effort or produce an unintended substitution. For users discussing sensitive political, personal or health-related subjects, that can change the meaning of a message unless they review what the phone inserts.

The findings also show that keyboard behavior reflects design decisions, not only a neutral dictionary or a statistical guess about the next word. Apple says the aim is to avoid offensive suggestions; Kauffman characterized the politically charged entries he found as a “light-touch form of censorship,” according to Reuters. That characterization is his assessment, not an established finding about Apple’s intent. The list’s existence makes the trade-off visible: limiting unwanted suggestions can also affect ordinary or politically significant language.

For readers, the immediate practical point is limited but useful: a failed swipe suggestion does not necessarily mean a word is misspelled or unavailable. Users can type the term manually, but the report does not establish how consistently that works across every phrase, language or device.

From spelling checks to prediction

Early spell-checking systems compared typed words with dictionaries. Predictive keyboards later used patterns in sequences of words, including statistical methods known as n-grams, to estimate what might come next. Apple’s familiar autocorrect has also drawn attention for replacing profanity with milder words, a behavior that became a recurring source of user complaints and jokes.

The Guardian reports that Apple introduced a newer, transformer-based autocorrect system the previous year. Some Reddit users attributed unusual spelling suggestions to that change, though the report presents those discussions as user observations, not proof of the cause. Kauffman’s discovery points to another component of keyboard behavior: a hard-coded restricted list, separate from the system’s broader predictions.

Apple previously addressed a separate dictation glitch in which “Trump” briefly appeared on users’ screens when they spoke the word “racist.” The company quickly fixed that issue, according to the report. It is distinct from the newly reported list, and the available material does not establish that the two behaviors share a cause.

“A “light-touch form of censorship.””

— Derik Kauffman, speaking to Reuters

What the list does not explain

The report does not establish who selected each entry, what rules determine inclusion, or whether all terms are blocked for the same reason. Apple has not, in the source material, offered a phrase-by-phrase explanation or said whether the list varies by operating-system version, region or keyboard language. The total is reported as more than 100,000, but the article does not provide a breakdown by category or language.

It is also unclear how often the restrictions affect everyday typing, or whether a missing suggestion reflects this list rather than another part of the predictive system. The finding shows that terms are restricted from suggestions or completion; it does not show that users are unable to type them, that messages containing them are monitored, or that Apple is applying a broader content policy to all communications. The earlier dictation glitch is a separate incident, and its relationship to the list is unknown.

Apple’s explanation and user workarounds

For now, Apple’s public explanation is that the keyboard is meant to avoid inappropriate or offensive predictive suggestions, and that users can manually enter and override terms. Readers encountering a bad swipe substitution can check the displayed text and type the intended phrase directly, as Apple advises.

The source material does not report a planned Apple software change, a company review of the list, or a response to individual examples. Further clarity would require Apple to explain the list’s selection criteria, how entries differ across languages and software versions, and whether users have settings to adjust these restrictions. Until then, the list’s scope and its effect on particular users remain uncertain.

Key Questions

What did the researcher find?

Derik Kauffman found an encoded list of more than 100,000 words and phrases in Apple’s operating system that the iPhone predictive-text system restricts from suggesting or completing.

Can an iPhone user still type a restricted phrase?

Apple says users can type specific words or phrases manually and override predictive-text suggestions. The reported restrictions concern suggestions and completion, not a demonstrated inability to enter the terms.

What kinds of phrases are on the list?

The reported examples include drug- and sex-related language, as well as political and social phrases such as “Kashmir dispute” and “Trayvon Martin.” The report also describes restricted phrases in Hebrew and Arabic.

Why does Apple restrict these suggestions?

Apple told The Guardian that its keyboard is designed to avoid inappropriate or offensive predictive suggestions. The source material does not explain why each individual phrase is included or identify the criteria used to create the list.

Does the list prove Apple monitors users’ messages?

No. The reported discovery concerns which terms the keyboard suggests or completes. It does not establish that Apple monitors messages containing those terms.

Source: theguardian.com