Which to use
“H1” and “H1N1” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #41,322
- “H1” frequency rank
- #43,969
- “H1N1” frequency rank
- 85291
- confusion score
Side-by-Side Comparison
| Feature | H1 | H1N1 |
|---|---|---|
| Definition | Échelle correspondant au rapport 1:64. | Code attribué à une des nombreuses variantes du virus de la grippe. |
Letter map: H1 vs H1N1
Shared letters muted; letters that set H1 and H1N1 apart highlighted. Shared run: 2. H1 runs 1 letters (C) against H1N1's 2 (CC) - the length gap alone is often enough to separate them once you know to check it.
Pair insight - H1 / H1N1
H1 and H1N1 are indexed as a confusable French pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 2 extra letter(s) - “H1” sits inside “H1N1”. Our composite confusion score for this pair is 85291, derived from the frequency rank of both members and their visual similarity.
H1 is recorded at frequency rank #41,322, classified as anoun, pronounced \aʃ.œ̃\. H1N1 is at rank #43,969, tagged as anoun.
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 85291, this pair ranks #11,575 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of H1 vs H1N1
Shared letters: h. Private to "H1": -. Private to "H1N1": n.
"H1" · 1 letters · shape C · "H1N1" · 2 letters · shape CC
Known mistypes of this pair
- H1N1 ← 1hn1 · h11n · h1nn1 · hh1n1 · hn11
Frequently Asked Questions
Is swapping "H1" for "H1N1" ever safe?
Which is more common, "H1" or "H1N1"?
What to do next
Pair "H1" vs "H1N1" is on the table, pick a follow-up below.
- Full dictionary entry for "H1" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "H1N1" - compare definitions side by side with the headword page. Word entry
- This pair ranks #11,575 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "H1" and "H1N1" also get mixed up with nearby pairs, the highest-scored neighbour is "H1N1 vs hind". 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 #11,575 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.