hydrofoil
/ˈhɑe.dɹəˌfoɪl/
"hydrofoil" is a 9-letter English headword indexed on PlainSpell.
The verdict
“hydrofoil” is uncommon English (frequency #88,439 among 2,646 “H” headwords), classed as a noun. The kind of spelling people second-guess.
- #88,439
- frequency rank, English
- 2,646
- “H” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A wing attached to the hull of a ship that raises it out of the water when travelling at speed and thus reduces drag.
Corpus desk
Index EN-hydrofoil · hydrofoil · English
hydrofoil · rank #88,439 · 0 variants · 0 confusables
- FREQ-RARE #88,439
- LEN-LONG 9 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,646
- PHOTO-FINISH Hypatia
Nearest frequency peer: Hypatia (+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 “hydrofoil”
Sparse band: bars invert rank so rarer forms read shorter
- horseplay
horseplay
11,566 corpus weight
- hydrofoil
hydrofoil
11,562 corpus weight
- Hypatia
Hypatia
11,561 corpus weight
- hyperventil…
hyperventilation
11,560 corpus weight
- hyponatremia
hyponatremia
11,559 corpus weight
- hysteric
hysteric
11,558 corpus weight
What this shows Long-tail view: where “hydrofoil” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | hydrofoil |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈhɑe.dɹəˌfoɪl/ |
| Letters | 9 |
| Frequency rank | #88,439 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “hydrofoil” in English
Rare enough to double-check
hydrofoil is uncommon English at frequency #88,439 among 2,646 “H” headwords, classed as anoun, transcribed /ˈhɑe.dɹəˌfoɪl/. Rarity is why readers land here mid-draft. 2 senses are on record.
No misspelling variants are generated for hydrofoil in our index, typically a sign the spelling maps closely to how the word sounds. No close-neighbour confusable shows up for this headword in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From hydro- + foil. The correct English form is hydrofoil, spelled H-Y-D-R-O-F-O-I-L.
Definition
- 1A wing attached to the hull of a ship that raises it out of the water when travelling at speed and thus reduces drag.
- 2A vessel equipped with such a device.
Etymology
From hydro- + foil.
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 "hydrofoil", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 9 letters (nearest by frequency rank).