Which to use
“hydra” and “hydrate” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #34,122
- “hydra” frequency rank
- #31,996
- “hydrate” frequency rank
- 66118
- confusion score
Side-by-Side Comparison
| Feature | hydra | hydrate |
|---|---|---|
| Definition | Hydre, en particulier l'Hydre de Lerne. | Nom générique des corps composés d’eau et d’un oxyde métallique, ou d’eau et d’un acide. |
Where the eye mixes hydra and hydrate
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Visual trap between hydra and hydrate
A purely visual mix-up. hydra (\ˈhy.dra\) and hydrate (\i.dʁat\) 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 “hydrate”. Our composite confusion score for this pair is 66118, derived from the frequency rank of both members and their visual similarity.
hydra is recorded at frequency rank #34,122, classified as anoun, pronounced \ˈhy.dra\. hydrate is at rank #31,996, tagged as anoun, pronounced \i.dʁat\.
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 66118, this pair ranks #69,220 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of hydra vs hydrate
Shared letters: adhry. Private to "hydra": -. Private to "hydrate": et.
"hydra" · 5 letters · shape CVCCV · "hydrate" · 7 letters · shape CVCCVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "hydra" for "hydrate" ever safe?
In ordinary French text, does "hydra" or "hydrate" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "hydra" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "hydrate" - compare definitions side by side with the headword page. Word entry
- This pair ranks #69,220 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "hydra" and "hydrate" also get mixed up with nearby pairs, the highest-scored neighbour is "HDR vs hydra". 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 #69,220 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.