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What is liquid sounds in speech therapy?

The L and R sounds—called "liquids" because the tongue flows smoothly. These are among the last sounds children master (L by age 5-6, R by age 6-7). "Gliding" is when children substitute W for these sounds. Example: The "l" in "loader" and the "r" in "race car."

🔊Speech Sounds

Liquid Sounds

What is liquid sounds in speech therapy?

The L and R sounds—called "liquids" because the tongue flows smoothly. These are among the last sounds children master (L by age 5-6, R by age 6-7). "Gliding" is when children substitute W for these sounds.

Example

The "l" in "loader" and the "r" in "race car."

🔊 The "l" in "loader" vs. "r" in "roller"

How can I help my child with liquid sounds?

Our app includes many vehicles with L and R sounds for targeted practice.

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About this guide: This glossary is designed to help parents understand speech therapy terminology. Definitions are simplified for clarity and informed by resources from the American Speech-Language-Hearing Association (ASHA).

Not medical advice: This information is educational only. For concerns about your child's speech development, consult a licensed speech-language pathologist (SLP).Find an SLP near you →

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Parents Also Ask

What are liquid sounds?▼

Liquid sounds are L and R—called "liquids" because the tongue flows smoothly during production. They're among the last sounds children master. L typically develops by age 5-6, R by age 6-7.

Why does my child say W instead of L and R?▼

This is called "gliding"—a very common and normal pattern. Children substitute the easier W sound for harder L and R sounds. "Rabbit" → "wabbit," "love" → "wuv." It typically resolves by age 5-6 for L and age 6-7 for R.

Grace Zaras M.S CCC-SLP
"The pictures of trucks are very relatable to boys which is perfect since a lot of boys need help with building speech and language."
Grace Zaras M.S CCC-SLP — ZARASpeech Company
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Related Terms

Gliding

When a child replaces liquid sounds ("l" and "r") with glide sounds ("w" and "y"). This makes words like "red" sound like "wed" and is very common in young children.

R Sound

One of the most challenging sounds for children to master. Most children don't say R correctly until ages 5-7. If your 4-year-old says "wabbit" instead of "rabbit," that's completely normal.

L Sound

Made by placing the tongue tip behind the upper front teeth. Easier than R but still develops later—most children master L by age 5-6. Saying "wuv" for "love" is normal in young children.

More Speech Sounds

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ArticulationPhonologyPhonemic AwarenessFricativesR SoundL Sound

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Little Wheels apps use vehicle-based learning to make speech practice engaging and fun. Perfect for home practice between therapy sessions.

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