Which to use
“hydra” and “hydrant” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #19,362
- “hydra” frequency rank
- #41,185
- “hydrant” frequency rank
- 60547
- confusion score
Side-by-Side Comparison
| Feature | hydra | hydrant |
|---|---|---|
| Definition | A dragon-like creature with many heads and the ability to regrow them when maimed. | An outlet from a liquid/fluid main often consisting of an upright pipe with a valve attached from which fluid (e.g. water or fuel) can be tapped. |
Where the eye mixes hydra and hydrant
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between hydra and hydrant
A purely visual mix-up. hydra (/ˈhaɪdɹə/) and hydrant (/ˈhaɪdɹənt/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 extra letter(s) - “hydra” sits inside “hydrant”. Our composite confusion score for this pair is 60547, derived from the frequency rank of both members and their visual similarity.
hydra is recorded at frequency rank #19,362, classified as anoun, pronounced /ˈhaɪdɹə/. hydrant is at rank #41,185, tagged as anoun, pronounced /ˈhaɪdɹənt/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 60547, this pair ranks #99,589 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of hydra vs hydrant
Shared letters: adhry. Private to "hydra": -. Private to "hydrant": nt.
"hydra" · 5 letters · shape CVCCV · "hydrant" · 7 letters · shape CVCCVCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "hydra" for "hydrant" ever safe?
Frequency check: "hydra" vs "hydrant" - which ranks higher?
Useful next steps
Eye-level mix-up between "hydra" and "hydrant" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "hydra" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "hydrant" - compare definitions side by side with the headword page. Word entry
- This pair ranks #99,589 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "hydra" and "hydrant" also get mixed up with nearby pairs, the highest-scored neighbour is "hydrant vs hydrate". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #99,589 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.