Which to use
“soft” is an adjective and “SPF” is a noun - they look or sound alike but fill different roles in a sentence.
- #12,057
- “soft” frequency rank
- #39,550
- “SPF” frequency rank
- 51607
- confusion score
Side-by-Side Comparison
| Feature | soft | SPF |
|---|---|---|
| Definition | Peu violent, doux. | Norme de vérification du nom de domaine de l'expéditeur d'un courrier électronique, destinée à réduire le spam, via les DNS. |
Where the eye mixes soft and SPF
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: soft vs SPF
These two trip readers on the page rather than in the ear: soft is \sɔft\ while SPF is \ɛs.pe.ɛf\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 51607, derived from the frequency rank of both members and their visual similarity.
soft is recorded at frequency rank #12,057, classified as anadj, pronounced \sɔft\. SPF is at rank #39,550, tagged as anoun, pronounced \ɛs.pe.ɛf\.
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 51607, this pair ranks #153,758 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of soft vs SPF
Shared letters: fs. Private to "soft": ot. Private to "SPF": p.
"soft" · 4 letters · shape CVCC · "SPF" · 3 letters · shape CCC
Known mistypes of this pair
- soft ← osft · sfot · sofft · softt · sotf · ssoft
Frequently Asked Questions
Is swapping "soft" for "SPF" ever safe?
Which is more common, "soft" or "SPF"?
Useful next steps
Eye-level mix-up between "soft" and "SPF" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "soft" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "SPF" - compare definitions side by side with the headword page. Word entry
- This pair ranks #153,758 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "soft" and "SPF" also get mixed up with nearby pairs, the highest-scored neighbour is "SPF vs suu". 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 #153,758 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.