soufrevssourceWhich spelling fits?

Which to use

“soufre” and “source” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#16,238
“soufre” frequency rank
#662
“source” frequency rank
16900
confusion score

Side-by-Side Comparison

Feature soufre source
Definition Élément chimique de numéro atomique 16 et de symbole S qui fait partie des non-métaux, plus spécifiquement des chalcogènes. Point d’émergence naturelle d’eau, généralement souterraine, à la surface du sol.

Where the eye mixes soufre and source

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

6 ch
soufre
6 ch
source

Visual trap between soufre and source

A purely visual mix-up. soufre (\sufʁ\) and source (\suʁs\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 16900, derived from the frequency rank of both members and their visual similarity.

soufre is recorded at frequency rank #16,238, classified as anoun, pronounced \sufʁ\. source is at rank #662, tagged as anoun, pronounced \suʁs\.

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 16900, this pair ranks #385,718 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of soufre vs source

Shared letters: eorsu. Private to "soufre": f. Private to "source": c.

"soufre" · 6 letters · shape CVVCCV  ·  "source" · 6 letters · shape CVVCCV

Known mistypes of this pair

  • soufreosufre · sofure · soufer · soufrre · sourfe · ssoufre · suofre
  • sourceosurce · soruce · soucre · sourcce · sourec · sourrce · ssource · suorce

Frequently Asked Questions

Can "soufre" and "source" be used interchangeably?
No. They are said differently (\sufʁ\ versus \suʁs\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "soufre" or "source" show up more?
"source" is the more common of the two: it sits at frequency rank #662 in our French list, against #16,238 for "soufre". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "soufre" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "source" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #385,718 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "soufre" and "source" also get mixed up with nearby pairs, the highest-scored neighbour is "sofres vs soufre". 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 #385,718 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list