sœurvssudWhat's the difference?

Which to use

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

#1,380
“sœur” frequency rank
#439
“sud” frequency rank
1819
confusion score

Side-by-Side Comparison

Feature sœur sud
Definition Femme ou fille, ayant le même père et la même mère que la personne considérée. Si un seul des parents est commun, c’est une demi-sœur. Point cardinal opposé au nord ; direction du pôle de l’hémisphère austral et correspondant à l’azimut 180°.

Where the spellings diverge

Shared letters are muted; the letters that actually set sœur and sud apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch
sœur
3 ch
sud

Spelling & Dictionary Insight

A purely visual mix-up. sœur (\sœʁ\) and sud (\syd\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 1819, derived from the frequency rank of both members and their visual similarity.

sœur is recorded at frequency rank #1,380, classified as anoun, pronounced \sœʁ\. sud is at rank #439, tagged as anoun, pronounced \syd\.

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 1819, this pair ranks #437,331 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sœur vs sud

Shared letters: su. Private to "sœur": . Private to "sud": d.

"sœur" · 4 letters · shape CVVC  ·  "sud" · 3 letters · shape CVC

Frequency comparison

sœur#1,380
sud#439

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "sœur" and "sud" be used interchangeably?
No. They are said differently (\sœʁ\ versus \syd\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "sœur" or "sud"?
"sud" is the more common of the two: it sits at frequency rank #439 in our French list, against #1,380 for "sœur". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering sœur vs sud

The fastest way to pick the right one every time.

  • Read both glosses above and match the meaning you intend, only context separates this pair.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “sœur” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list