French eu and œu: deux, sœur and neuf
Vocalyra teaching team · Last updated:
The written sequences eu and œu can represent two related rounded front vowels in French: /ø/, as in deux, and /œ/, as in sœur. English has no identical everyday vowel pair, so many learners replace both with the vowel in her or with an English oo. The result is understandable sometimes, but the contrast helps with listening and accurate speech. Instead of treating the spelling as a single sound, learn how mouth opening and lip rounding interact, then practise high-frequency words in short phrases.
Make the close rounded vowel /ø/
For /ø/ in deux, peu, feu and bleu, begin with the tongue position of a French or Spanish /e/ and round your lips as if preparing to say /o/. Keep the tongue relatively high and forward; do not slide into an English diphthong. The sound is often described as a close-mid front rounded vowel. Say peu de temps and deux cafés without adding a final w sound. English speakers may substitute /u/ as in food, but that pulls the tongue too far back. The lip shape alone is not enough; tongue position matters.
Open the mouth slightly for /œ/
For /œ/ in sœur, neuf, jeune and peur, keep the lips rounded but lower the tongue and open the jaw a little more. The vowel is open-mid, not the same as English er in most accents. Compare peu /pø/ with peur /pœʁ/: the second vowel is more open and followed by the French r. Another useful contrast is deux /dø/ and deuil /dœj/. The spelling does not give a perfect one-line rule, but repeated listening to these pairs helps you build two separate categories.
How syllable shape helps; but has exceptions
In many common words, /ø/ appears in an open syllable, as in peu and deux, while /œ/ appears in a closed syllable, as in jeune and neuf. This is a tendency, not a universal spelling law: French has regional differences, morphological effects and lexical exceptions. A dictionary pronunciation is the safest source for an unfamiliar word. Avoid telling yourself that eu always means /ø/ or œu always means /œ/: sœur contains œu with /œ/, but bœufs may vary in pronunciation according to form and context.
Πis a spelling symbol, not a new sound by itself
The ligature œ joins o and e in writing. You see it in sœur, cœur and œuf, but not every œ is followed by u. Cœur /kœʁ/ and sœur /sœʁ/ share the open rounded vowel. Œuf in the singular is often /œf/, while œufs in the plural is commonly /ø/ in standard French; the difference is worth checking in context. Do not assume that a word with œ looks like the English word oe or that the letters are pronounced separately.
English-speaker corrections
If you pronounce deux like doo, shift the tongue forward while keeping the lips rounded. If sœur sounds like English sir, try rounding the lips and lowering the jaw a little. Record Je veux deux œufs and Ma sœur a peur. Listen for two different vowel targets, not just for a French accent. The consonants may also be difficult, especially the French r, but practise the vowel contrast first. You can work with slow recordings from a dictionary and then repeat at normal conversational speed.
Use the vowels in a realistic scene
At breakfast: ; Tu veux deux œufs ? ; Oui, mais j’ai peu de temps. ; Ma sœur arrive dans neuf minutes. In this exchange, deux and peu use /ø/, while sœur and neuf use /œ/. Œufs is useful because its plural pronunciation differs from the singular in many standard references. Read the dialogue, mark the vowels with two different symbols, and explain why the written letters alone are not enough. Then make your own sentence with peur and bleu to test the contrast.
Quick reference examples
| Word or sentence | Explanation |
|---|---|
| deux | Closed /ø/ vowel |
| feu | Closed /ø/ vowel |
| sœur | Open /œ/ vowel |
| neuf | Open /œ/ vowel |
Quick self-check
Which word normally has /ø/: deux or sœur?
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deux.
Which has /œ/: neuf or peu?
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neuf.
Is /ø/ identical to English oo?
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No; the tongue is farther forward.
Which word means sister?
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sœur.
Which word means fear?
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peur.
Does eu always represent /ø/?
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No.
Name a word with /œ/ and the ligature œ.
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sœur or cœur.
What physical change distinguishes /œ/ from /ø/?
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/œ/ is more open, with a lower tongue/jaw.