hydra
/ˈhaɪdɹə/
"hydra" is a 5-letter English headword indexed on PlainSpell.
The verdict
“hydra” is a moderately-common English word, ranked #19,362 in English word frequency and used as a noun.
- #19,362
- frequency rank, English
- 5
- letters
- 8
- tracked misspellings
- 8
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A dragon-like creature with many heads and the ability to regrow them when maimed.
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 | hydra |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈhaɪdɹə/ |
| Letters | 5 |
| Frequency rank | #19,362 |
| Misspellings tracked | 8 |
| Confusable pairs | 8 |
| Source | Wiktionary (kaikki.org) |
Where “hydra” sits in English frequency
Spelling & Dictionary Insight
The English entry for hydra is 5 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈhaɪdɹə/. Corpus data places it at rank #19,362 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 8 likely wrong-spelling variants for hydra, with forms such as "hdyra", "hhydra", and "hydar". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 8 confusable-pair relationships, "hyena", "hydrate", "hydrant", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.
Etymologically, the entry records: After the Hydra, from Greek mythology, which grew two new heads every time one of its heads was cut off. The biology sense alludes to the budding method of asexual reproduction that the hydra practices, similar to growing new heads. The figurative sense ref… The correct English form is hydra, spelled H-Y-D-R-A.
Definition
- 1A dragon-like creature with many heads and the ability to regrow them when maimed.
- 2Any of several small freshwater polyps of the genus Hydra and related genera, having a naked cylindrical body and an oral opening surrounded by tentacles.
- 3A complex, multifarious problem or situation that cannot be easily and rapidly solved.
Etymology
After the Hydra, from Greek mythology, which grew two new heads every time one of its heads was cut off. The biology sense alludes to the budding method of asexual reproduction that the hydra practices, similar to growing new heads. The figurative sense refers to how the creature could not be killed by a swift, decisive solution (in contrast to a Gordian knot).
This word in other languages
Common misspellings
Also misspelled as: hdyra,hhydra,hydar,hyddra,hydrra,hyrda,hyydra,yhdra
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of hydra - 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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Using “hydra”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is H-Y-D-R-A - every other letter order is a misspelling in standard orthography.
- Say it as /ˈhaɪdɹə/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “hyena” - see the side-by-side comparison. hydra vs hyena
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.