To teach the Z sound, make it exactly like the S sound — tongue tip near the ridge behind the top teeth, air flowing down the middle of the tongue — but turn the voice on so it buzzes like a bee: “zzzz.” The easiest trick is to have the child say a long “sssss,” then switch the voice on to feel it become “zzzz.” Have them touch their throat to feel the buzz. Practice in order: the sound alone, then syllables (za, ze, zo), then words (zoo, zip, buzz), then phrases and sentences. The /z/ sound is a voiced alveolar fricative and develops a bit later, around age 4 to 6. If your child says “s” instead (“soo” for “zoo”), the fix is simply reminding them to turn their voice on.
The “z” sound is a voiced alveolar fricative, which means that it is produced by vibrating the vocal cords while forcing air through a narrow opening between the tongue and the alveolar ridge. In speech therapy, the “z” sound is sometimes referred to as the “voiced alveolar sibilant” or simply the “voiced sibilant.” To produce the “z” sound, you can start by placing the tip of your tongue close to the alveolar ridge, which is the bony ridge behind your upper front teeth. Keep your tongue flat and your lips relaxed, and then vibrate your vocal cords while exhaling air through your mouth and forcing the air between your tongue and the alveolar ridge to create the fricative sound.
It is important to note that the “z” sound is similar to the “s” sound, but with the addition of vocal cord vibration. The “z” sound can vary depending on the dialect and the surrounding sounds, and it is often used to differentiate between words that would otherwise be pronounced the same with only the “s” sound.
1-syllable: zap, zeal, zen, zest, zinc, zip, zone, zoo, zoom
2-syllable: zebra, zephyr, zero, zigzag, zipper, zombie, zoo keeper (zookeeper)
3-syllable: xylophone (starts with /z/ sound), zeppelin
2-syllable: blazer, buzzer, busy, cousin, crazy, dizzy, dozen, easy, fizzy, frozen, fuzzy, hazy, lazy, lizard, muzzle, nozzle, puzzle, present, raisin, razor, reason, season, weasel, wizard
3-syllable: amazing, banana (no—remove), casino, deserve (no), designer, dinosaur, museum, positive
1-syllable (spelled z/zz): buzz, fizz, fuzz, jazz, quiz
1-syllable (spelled s/se — still /z/): as, buzz, cheese, does, ease, eyes, has, his, is, nose, rose, these, those, was, wise
2-syllable: because, cheese (1), noodles, please (1), roses, sneeze (1), surprise
Demonstrate the sound: Start by demonstrating the “Z” sound for your child. Make the sound and have your child watch your lips and mouth movements. Explain that the sound is made by placing the tongue behind the top teeth and vibrating the vocal cords to create a buzzing sound.
Visual Cue: Show the child how to place the tip of their tongue behind their upper front teeth, and then vibrate their vocal cords to create a buzzing sound. You can also use a visual cue such as a picture or flashcard of the letter “Z” to help your child remember the sound.
Understand the sound: Help your child understand that the “Z” sound is made by placing the tongue behind the top teeth and vibrating the vocal cords to create a buzzing sound.
Practice Blowing: Help your child get used to the sensation of blowing out air with their mouth by having them practice blowing bubbles, blowing feathers across a table, or blowing out candles.
Practice Tongue Placement: Show your child how to position their tongue behind their top teeth and vibrate their vocal cords to create the “Z” sound.
Practice in Isolation: Once your child has mastered the correct tongue and mouth position, have them practice making the “Z” sound on its own without any other sounds.
Add Syllables: After your child has mastered the “Z” sound in isolation, have them practice using it in different syllables, such as “za,” “ze,” and “zo.” You can make it more fun by having them say words like “zigzag,” “zebra,” and “zombie.”
Practice in Words: Once your child has mastered the “Z” sound in syllables, have them practice using it in different words such as “zoo,” “zipper,” and “buzz.”
Practice in Phrases: After your child has mastered the “Z” sound in words, have them practice using it in phrases like “crazy cat,” “big zipper,” and “fuzzy buzz.”
Practice in Sentences: Finally, have your child practice using the “Z” sound in different sentences such as “The zoo is full of animals,” “I zipped up my coat,” and “The bee buzzed around the flower.”
Practice Everywhere: Encourage your child to practice using the “Z” sound in different contexts, such as during playtime, mealtime, or while reading books. You can also make it more fun by having them use the “Z” sound in different accents or dialects.
Everything you need to practice the /z/ sound — from single words to full sentences.
Free Z interactive audio flashcards featuring words with the “Z” sound words can be a useful tool for improving pronunciation and vocabulary.
The /z/ sound tends to develop a little later, often between ages 4 and 6. Since it depends on voicing, some children master S first and add Z shortly after.
S and Z are made in exactly the same place — the only difference is that Z uses the voice and S doesn’t. Saying “soo” for “zoo” usually just means the child forgot to turn the voice on. Have them touch their throat to feel the buzz on Z.
Many /z/ sounds are spelled with the letter S — like “nose,” “cheese,” “is,” and “was.” They still count as Z practice because it’s the sound that matters, not the spelling.
Start with fun, easy words like “zoo,” “zip,” “buzz,” and “bee’s buzz,” where the buzzing Z is easy to hear and hold.
