Which to use
“SPF” is a noun and “supp” is a verb - they look or sound alike but fill different roles in a sentence.
- #39,550
- “SPF” frequency rank
- #31,754
- “supp” frequency rank
- 71304
- confusion score
Side-by-Side Comparison
| Feature | SPF | supp |
|---|---|---|
| Definition | Norme de vérification du nom de domaine de l'expéditeur d'un courrier électronique, destinée à réduire le spam, via les DNS. | Deuxième personne du singulier de l’impératif présent de suppen. |
Where the eye mixes SPF and supp
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between SPF and supp
These two trip readers on the page rather than in the ear: SPF is \ɛs.pe.ɛf\ while supp is \zʊp\. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 71304, derived from the frequency rank of both members and their visual similarity.
SPF is recorded at frequency rank #39,550, classified as anoun, pronounced \ɛs.pe.ɛf\. supp is at rank #31,754, tagged as averb, pronounced \zʊp\.
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 71304, this pair ranks #48,035 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of SPF vs supp
Shared letters: ps. Private to "SPF": f. Private to "supp": u.
"SPF" · 3 letters · shape CCC · "supp" · 4 letters · shape CVCC
Known mistypes of this pair
- supp ← spup · ssupp · uspp
Frequently Asked Questions
Can "SPF" and "supp" be used interchangeably?
Frequency check: "SPF" vs "supp" - which ranks higher?
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 "SPF" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "supp" - compare definitions side by side with the headword page. Word entry
- This pair ranks #48,035 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "SPF" and "supp" 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 #48,035 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.