autofocus
"autofocus" is a 9-letter English headword indexed on PlainSpell.
The verdict
“autofocus” is uncommon English (frequency #51,551 among 3,931 “A” headwords), classed as a noun. The kind of spelling people second-guess.
- #51,551
- frequency rank, English
- 3,931
- “A” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A feature of some cameras and other optical systems that allows a correct focus on the subject to be obtained automatically
Corpus desk
Index EN-autofocus · autofocus · English
autofocus · rank #51,551 · 0 variants · 0 confusables
- FREQ-RARE #51,551
- LEN-LONG 9 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,931
- PHOTO-FINISH Audra
Nearest frequency peer: Audra (-1 rank slots)
Read with this headword: Spelling guide for this pattern
Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.
Long-tail ranks near “autofocus”
Sparse band: bars invert rank so rarer forms read shorter
- astern
astern
48,453 corpus weight
- ATPase
ATPase
48,452 corpus weight
- Audra
Audra
48,451 corpus weight
- autofocus
autofocus
48,450 corpus weight
- Baghdadi
Baghdadi
48,448 corpus weight
- Balenciaga
Balenciaga
48,446 corpus weight
What this shows Long-tail view: where “autofocus” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | autofocus |
| Language | English |
| Part of speech | Noun |
| Letters | 9 |
| Frequency rank | #51,551 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “autofocus” in English
Rare enough to double-check
autofocus is uncommon English at frequency #51,551 among 3,931 “A” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A feature of some cameras and other optical systems that allows a correct focus on the subject to be obtained automatically".
Our edit-distance generator produced no likely misspellings for autofocus, suggesting the orthography follows predictable English patterns. 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.
Etymologically, the entry records: From auto- + focus. The correct English form is autofocus, spelled A-U-T-O-F-O-C-U-S.
Definition
- 1A feature of some cameras and other optical systems that allows a correct focus on the subject to be obtained automatically
Recorded use
Wiktionary exampleThese source excerpts show how autofocus appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
This camera has autofocus, so it's more expensive.
Etymology
From auto- + focus.
Synonyms
This word in other languages
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.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "autofocus", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 9 letters (nearest by frequency rank).