French ui and oui: the difference between lui and Louis
Compare lui /lɥi/ with Louis /lwi/, follow the tongue and lip cues, and use a short family exchange to keep the two rounded glides distinct.
In short
Lui /lɥi/ and Louis /lwi/ are both one syllable. For lui, keep the tongue forward as for French u; for Louis, start farther back as for ou. Both glides use rounded lips and move straight into /i/.
Yellow the idea to rememberBlue French to learn
lui /lɥi/him
Focus: a front rounded glide: /ɥ/
French /y/ position → /i/
Je parle avec lui.
I’m speaking with him.
C’est pour lui.
It’s for him.
Louis /lwi/Louis, a first name
Focus: a back rounded glide: /w/
French /u/ position → /i/
Je parle avec Louis.
I’m speaking with Louis.
C’est pour Louis.
It’s for Louis.
How do you pronounce lui and Louis differently?
| Step | For /ɥ/ | For /w/ |
|---|---|---|
| Find the starting vowel | Say French u, /y/: tongue forward, lips rounded. | Say French ou, /u/: tongue farther back, lips rounded. |
| Move into /i/ | Move from /y/ towards /i/ and release the lip rounding. | Move from /u/ towards /i/ and release the lip rounding. |
| Put it in the word | Say /lɥi/ in one smooth syllable. | Say /lwi/ in one smooth syllable. |
Use the slow vowel movement to find the starting positions, then make it quick. In the complete word, the glide leads into the vowel; it has no separate beat. Aim for one syllable each time. The English sound at the start of “we” is a useful starting cue for /w/. French /ɥ/ needs the forward tongue position of French u.
- Nora
Tu connais mon frère Louis ?
Do you know my brother Louis?
- Sam
Oui, je travaille avec lui.
Yes, I work with him.
- Nora
Tu peux lui demander de venir ?
Can you ask him to come?
- Sam
Bien sûr. Je vais appeler Louis.
Of course. I’ll call Louis.
Why this pair helps more than huit and oui
In lui/Louis, /l/ and /i/ stay in place: just the glide changes. In huit /ɥit/ and oui /wi/, there is another difference: huit ends in /t/. Recognising that /t/ can tell you which word it is before you have settled the glide. Use lui/Louis for the close comparison, then bring huit, nuit and oui into sentences.
A short spoken turn
- Say Je parle avec lui, then Je parle avec Louis. Keep the surrounding words steady.
- Repeat the target words in the order Louis, lui, lui, Louis. Give each one a single beat.
- Ask a partner to point to the word they understood. Repeat the unclear word, using its u or ou starting position.