hydrodynamics
"hydrodynamics" is a 13-letter English headword indexed on PlainSpell.
The verdict
“hydrodynamics” is uncommon English (frequency #73,280 among 2,646 “H” headwords), classed as a noun. The kind of spelling people second-guess.
- #73,280
- frequency rank, English
- 2,646
- “H” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The scientific study of liquids in motion.
Corpus desk
Index EN-hydrodynamics · hydrodynamics · English
hydrodynamics · rank #73,280 · 0 variants · 0 confusables
- FREQ-RARE #73,280
- LEN-MEGA 13 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,646
- PHOTO-FINISH humorless
Nearest frequency peer: humorless (-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 “hydrodynamics”
Sparse band: bars invert rank so rarer forms read shorter
- hospitalisa…
hospitalisation
26,728 corpus weight
- hotch
hotch
26,725 corpus weight
- humorless
humorless
26,722 corpus weight
- hydrodynami…
hydrodynamics
26,721 corpus weight
- Ibaraki
Ibaraki
26,719 corpus weight
- Ibarra
Ibarra
26,718 corpus weight
What this shows Long-tail view: where “hydrodynamics” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | hydrodynamics |
| Language | English |
| Part of speech | Noun |
| Letters | 13 |
| Frequency rank | #73,280 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “hydrodynamics” in English
Rare enough to double-check
hydrodynamics is uncommon English at frequency #73,280 among 2,646 “H” headwords, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.
The misspelling generator found no plausible variants for hydrodynamics, which points to an orthography that plays by predictable English rules. 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 hydro- + dynamics. The correct English form is hydrodynamics, spelled H-Y-D-R-O-D-Y-N-A-M-I-C-S.
Definition
- 1The scientific study of liquids in motion.
- 2The phenomena thus studied.
Recorded use
Wiktionary examplesThese source excerpts show how hydrodynamics appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
He specializes in hydrodynamics.
The hydrodynamics of a hovercraft are fascinating.
Etymology
From hydro- + dynamics.
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 "hydrodynamics", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 13 letters (nearest by frequency rank).