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atomic typo

(slang, rare) A typographical error that coincidentally results in a different, correctly spelled word and thus cannot be detected by a spell checker.

əˈtɑmɪk ˈtaɪpoʊ173 viewsLast reviewed Jun 29, 2026+ Add a definition
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US
#1·Apr 26, 2026US

(slang, rare) A typographical error that coincidentally results in a different, correctly spelled word and thus cannot be detected by a spell checker.

Many a proofreader has chuckled at how often the atomic typo of "form" for "from" appears in proofs and in print; this error catches their eye more easily than it catches the eye of most writers.
For parents

Atomic typo means: A typographical error that coincidentally results in a different, correctly spelled word and thus cannot be detected by a spell checker.. It is informal slang, fine in casual speech but not suited to formal contexts. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.

For ESL learners

atomic typo means: A typographical error that coincidentally results in a different, correctly spelled word and thus cannot be detected by a spell checker.. Register: very informal, slang. Suitable only for casual conversation, chat and social media. Do not use in business, academic or news writing. A common learner mistake is using the word in a register it does not fit, or assuming a single global meaning; native speakers immediately notice when slang appears in formal contexts, so always check the surrounding register before producing it yourself.

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For specific readers

Atomic typo means: A typographical error that coincidentally results in a different, correctly spelled word and thus cannot be detected by a spell checker.. It is informal slang, fine in casual speech but not suited to formal contexts. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.

Why is this section here?

Slang is read by different audiences for very different reasons. The For parents view re-explains the term in plain, non-judgemental language so a caregiver can understand what their child means without needing the surrounding subculture. The For English learners view focuses on register (when it's safe to use), formal alternatives, and common mistakes — what a textbook won't teach you.

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