hydra

/ˈhaɪdɹə/

//ˈhaɪdɹə// noun

By · According to Wiktionary data (CC BY-SA) ·

"hydra" is a 5-letter English headword indexed on PlainSpell.

The verdict

“hydra” has 8 generated spelling variants in the English index at frequency #19,362. The variants make it a useful spelling check.

#19,362
frequency rank, English
2,646
“H” headwords
8
tracked misspellings
8
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A dragon-like creature with many heads and the ability to regrow them when maimed.

Corpus desk

Index EN-hydra · hydra · English

hydra · rank #19,362 · 8 variants · 8 confusables

  • FREQ-MID #19,362
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-MID 8 pairs
  • VAR-MID 8 variants
  • BOOK-MID 2,646
  • PHOTO-FINISH hypocritical

Nearest frequency peer: hypocritical (+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 “hydra”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “hydra” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

hydra vs hyena
60% similar
hydra vs hydrate
71% similar
hydra vs hydrant
71% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for hydra
PropertyValue
Headwordhydra
LanguageEnglish
Part of speechNoun
IPA/ˈhaɪdɹə/
Letters5
Frequency rank#19,362
Misspellings tracked8
Confusable pairs8
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “hydra”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).hydralands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “hypocritical” (#19,363), “hooking” (#19,360), “illustrious” (#19,364). Among 2,646 “H” headwords, “hydra” is #19,362. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 8 spelling variants around hydra (IPA /ˈhaɪdɹə/), anoun. Corpus frequency is #19,362 among 2,646 “H” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

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

  1. 1
    A dragon-like creature with many heads and the ability to regrow them when maimed.
  2. 2
    Any of several small freshwater polyps of the genus Hydra and related genera, having a naked cylindrical body and an oral opening surrounded by tentacles.
  3. 3
    A complex, multifarious problem or situation that cannot be easily and rapidly solved.

Recorded use

Wiktionary example

These source excerpts show how hydra appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Because the statute is so vaguely worded, award decisions are habitually based on case law, the growing mountain of which is a hydra of rulings that point in so many directions that almost any decision can be defended or overturned on appeal, depending on how smart your lawyer is and which precedent he selects to argue your case.

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

hydra(Español)hydre(Français)Hydra(Deutsch)hidra(Português)

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.

hdyra2hhydra1hydar2hyddra1hydrra1hyrda2hyydra1yhdra2
Edit distance from "hydra"

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

How do you spell "hydra"?
"hydra" is spelled H-Y-D-R-A. The IPA pronunciation is /ˈhaɪdɹə/.
What does "hydra" mean?
As a noun, "hydra" means: A dragon-like creature with many heads and the ability to regrow them when maimed.
What words are commonly confused with "hydra"?
"hydra" is commonly confused with "hyena", "hydrate", "hydrant". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "hydra"?
The IPA (International Phonetic Alphabet) transcription for "hydra" is /ˈhaɪdɹə/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "hydra"?
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... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "hydra", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

heaps#19,357gloom#19,352garth#19,347kyrie#19,377

Similar misspelling depth

Headwords with a similar count of attested misspellings (8 here; floor ≥5).

indigo8 variantsGillian8 variantscrease8 variantsquarrel8 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list