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What is blends (consonant clusters) in speech therapy?

Two or more consonant sounds together where you hear each sound: TR in "truck," BL in "bulldozer," ST in "steam." Children often simplify these (cluster reduction) until around age 4. Example: The "tr" in "truck," "bl" in "bulldozer," or "st" in "steam roller."

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Blends (Consonant Clusters)

What is blends (consonant clusters) in speech therapy?

Two or more consonant sounds together where you hear each sound: TR in "truck," BL in "bulldozer," ST in "steam." Children often simplify these (cluster reduction) until around age 4.

Example

The "tr" in "truck," "bl" in "bulldozer," or "st" in "steam roller."

🔊 The "tr" blend in "truck"

How can I help my child with blends (consonant clusters)?

Our app introduces blends gradually: "truck," "tractor," "crane," "steam roller."

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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 consonant blends?▼

Blends (or clusters) are two or more consonants together where you hear each sound: TR (truck), BL (blue), ST (stop), CR (crane). They're harder than single sounds because children must coordinate multiple sounds quickly.

When do children learn blends?▼

Most children master common blends by age 4-5. Before that, "cluster reduction" is normal—saying "tuck" for "truck" or "top" for "stop." S-blends (sp, st, sk) often develop last.

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Related Terms

Cluster Reduction

When a child simplifies words by dropping one sound from a blend (two consonants together). For example, "truck" has a TR blend—children often drop the R and say "tuck."

Phonological Process

A predictable pattern children use to simplify adult speech. Fronting, stopping, gliding—these are all normal and disappear by certain ages. Only a concern if they persist too long.

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