vivax
"vivax" is a 5-letter English headword indexed on PlainSpell.
The verdict
“vivax” is uncommon English (frequency #86,924 among 969 “V” headwords), classed as a noun. The kind of spelling people second-guess.
- #86,924
- frequency rank, English
- 969
- “V” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Malaria caused by the parasite Plasmodium vivax.
Corpus desk
Index EN-vivax · vivax · English
vivax · rank #86,924 · 0 variants · 0 confusables
- FREQ-RARE #86,924
- LEN-MID 5 letters
- VOW-2 2 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 969
- PHOTO-FINISH vindicator
Nearest frequency peer: vindicator (-3 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 “vivax”
Sparse band: bars invert rank so rarer forms read shorter
- Verhoeven
Verhoeven
13,084 corpus weight
- vermeil
vermeil
13,083 corpus weight
- vindicator
vindicator
13,080 corpus weight
- vivax
vivax
13,077 corpus weight
- WAK
WAK
13,071 corpus weight
- Wallander
Wallander
13,070 corpus weight
What this shows Long-tail view: where “vivax” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | vivax |
| Language | English |
| Part of speech | Noun |
| Letters | 5 |
| Frequency rank | #86,924 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “vivax” in English
Rare enough to double-check
vivax is uncommon English at frequency #86,924 among 969 “V” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Malaria caused by the parasite Plasmodium vivax.".
Zero misspellings are on record for vivax in our index, which points to an orthography that plays by predictable English rules. This headword has no recorded confusable partner, since its spelling is unusual enough that it doesn't cluster with a lookalike.
This headword's origin isn't recorded in our source data, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is vivax, spelled V-I-V-A-X.
Definition
- 1Malaria caused by the parasite Plasmodium vivax.
Recorded use
Wiktionary exampleThese source excerpts show how vivax appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Thus, the usefulness of chloroquine or other blood stage prophylaxis in complete prevention of vivax is very limited (it might have some value only in areas where the relapse rate is very low), and it should not be regarded as a vivax prophylaxis.
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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Similar English words by spelling shape
Same letter count and similar misspelling depth for "vivax", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 5 letters (nearest by frequency rank).