failsafe
"failsafe" is a 8-letter English headword indexed on PlainSpell.
The verdict
“failsafe” is an uncommon English word, ranked #62,885 in English word frequency and used as a noun.
- #62,885
- frequency rank, English
- 8
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Alternative form of fail-safe.
| Property | Value |
|---|---|
| Headword | failsafe |
| Language | English |
| Part of speech | Noun |
| Letters | 8 |
| Frequency rank | #62,885 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “failsafe” sits in English frequency
Spelling & Dictionary Insight
The English entry for failsafe is 8 letters long, classified as a noun. Corpus data places it at rank #62,885 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Alternative form of fail-safe.".
No generated misspelling entries exist for failsafe in our index, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
No documented word history exists for this headword, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct English form is failsafe, spelled F-A-I-L-S-A-F-E.
Definition
- 1Alternative form of fail-safe.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
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Using “failsafe”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is F-A-I-L-S-A-F-E - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.