sœurvssunWhat's the difference?

Quick tell: sœur is a noun, sun is a verb, so they fill different roles in a sentence.

Which to use

“sœur” is a noun and “sun” is a verb - they look or sound alike but fill different roles in a sentence.

#1,380
“sœur” frequency rank
#6,897
“sun” frequency rank
8277
confusion score

Side-by-Side Comparison

Feature sœur sun
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. Chanter

Where the spellings diverge

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

4 ch
sœur
3 ch
sun

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sœur is anoun and sunaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 8277, 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\. sun is at rank #6,897, tagged as averb.

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 8277, this pair ranks #420,577 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sœur vs sun

Shared letters: su. Private to "sœur": . Private to "sun": n.

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

Frequency comparison

sœur#1,380
sun#6,897

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "sœur" and "sun" be used interchangeably?
No - they are not even the same part of speech. "sœur" is a noun and "sun" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sœur" or "sun"?
"sœur" is the more common of the two: it sits at frequency rank #1,380 in our French list, against #6,897 for "sun". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering sœur vs sun

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “sœur”; for a verb, it's “sun”.
  • 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