Which to use
“hydrate” is a noun and “hydrater” is a verb - they look or sound alike but fill different roles in a sentence.
- #31,996
- “hydrate” frequency rank
- #37,370
- “hydrater” frequency rank
- 69366
- confusion score
Side-by-Side Comparison
| Feature | hydrate | hydrater |
|---|---|---|
| Definition | Nom générique des corps composés d’eau et d’un oxyde métallique, ou d’eau et d’un acide. | Combiner un corps avec de l’eau. |
Where the eye mixes hydrate and hydrater
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. hydrate runs 7 letters (CVCCVCV) against hydrater's 8 (CVCCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between hydrate and hydrater
These two trip readers on the page rather than in the ear: hydrate is \i.dʁat\ while hydrater is \i.dʁa.te\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “hydrate” sits inside “hydrater”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 69366, derived from the frequency rank of both members and their visual similarity.
hydrate is recorded at frequency rank #31,996, classified as anoun, pronounced \i.dʁat\. hydrater is at rank #37,370, tagged as averb, pronounced \i.dʁa.te\.
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 69366, this pair ranks #55,400 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of hydrate vs hydrater
Shared letters: adehrty. Private to "hydrate": -. Private to "hydrater": -.
"hydrate" · 7 letters · shape CVCCVCV · "hydrater" · 8 letters · shape CVCCVCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "hydrate" for "hydrater" ever safe?
Frequency check: "hydrate" vs "hydrater" - which ranks higher?
After this comparison
Eye-level mix-up between "hydrate" and "hydrater" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "hydrate" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "hydrater" - compare definitions side by side with the headword page. Word entry
- This pair ranks #55,400 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "hydrate" and "hydrater" also get mixed up with nearby pairs, the highest-scored neighbour is "hydrate vs hydre". 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 #55,400 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.