Salut! Today you're learning why the letter S doesn't always sound like an S — and when it secretly becomes a Z. Video below Le son S — like the "s" in "sun" s → souffler, salade ss → chasse, dessert c → exercice sc → ascenseur / x → six Le son Z — like the "z" in "zone" z → zone, zéro s → raison, rose, musique, oiseau (s between two vowels always becomes Z) The big rule to remember: a single s between two vowels is always pronounced Z in French. Double it up and it goes back to S. What's your favorite word with a Z sound? Write them in the zoo below!