apnea
/ˈæp.ni.ə/
"apnea" is a 5-letter English headword indexed on PlainSpell.
The verdict
“apnea” has 6 generated spelling variants in the English index at frequency #28,817. The variants make it a useful spelling check.
- #28,817
- frequency rank, English
- 3,931
- “A” headwords
- 6
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The cessation of breathing, most often in reference to transient instances thereof during sleep.
Corpus desk
Index EN-apnea · apnea · English
apnea · rank #28,817 · 6 variants · 20 confusables
- FREQ-MID #28,817
- LEN-MID 5 letters
- VOW-3 3 vowels
- CONFUS-HIGH 20 pairs
- VAR-MID 6 variants
- BOOK-MID 3,931
- PHOTO-FINISH AOC
Nearest frequency peer: AOC (-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.
Rank peers near misspelling magnet “apnea”
Same rarity band: useful when a typo lands on a peer headword
- amazement
amazement
71,188 corpus weight
- AOC
AOC
71,185 corpus weight
- apnea
apnea
71,184 corpus weight
- armpit
armpit
71,182 corpus weight
- arr
arr
71,181 corpus weight
- ASL
ASL
71,180 corpus weight
What this shows “apnea” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | apnea |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈæp.ni.ə/ |
| Letters | 5 |
| Frequency rank | #28,817 |
| Misspellings tracked | 6 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Frequency seat of misspelling magnet “apnea”
A misspelling magnet
The generator records 6 spelling variants around apnea (IPA /ˈæp.ni.ə/), anoun. Corpus frequency is #28,817 among 3,931 “A” headwords. Dominant gloss: "The cessation of breathing, most often in reference to transient instances thereof during sleep.".
Our generated misspelling index lists 6 likely wrong-spelling variants for apnea, with forms such as "anpea", "apena", and "apnae". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 20 confusable-pair relationships, "area", "Arne", "appear", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From a- + -pnea, from the New Latin apnoea, from the Ancient Greek ἄπνοια (ápnoia), formed from ἀ- (a-, “absence of”) + πνοή (pnoḗ, “breathing”). The correct English form is apnea, spelled A-P-N-E-A.
Definition
- 1The cessation of breathing, most often in reference to transient instances thereof during sleep.
Etymology
From a- + -pnea, from the New Latin apnoea, from the Ancient Greek ἄπνοια (ápnoia), formed from ἀ- (a-, “absence of”) + πνοή (pnoḗ, “breathing”).
Synonyms
This word in other languages
Common misspellings
Also misspelled as:
- anpea
- apena
- apnae
- apnnea
- appnea
- panea
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of apnea - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 "apnea", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 5 letters (nearest by frequency rank).
Similar misspelling depth
Headwords with a similar count of attested misspellings (6 here; floor ≥5).