Speech Sound Development
- Tamara Gonzalez-Scheulov
- Jun 24
- 4 min read
Updated: Aug 3
By Tamara Gonzalez-Scheulov, M.S. CCC-SLP
Speech sound development refers to the order in which children typically learn to produce speech sounds as they grow.
Understanding speech sound milestones helps parents know what to expect, recognize typical speech development, and identify when speech therapy may be beneficial.
Typical Speech Sound Development
Typical speech sound development occurs along a continuum. Some children develop speech sounds earlier or later than expected while still following a typical pattern of speech development.
SLPs look at many factors when evaluating speech development, including:
overall intelligibility
speech sound patterns
consistency of errors
language skills
social and academic impact
Speech sound milestones are just one piece of the puzzle.
What Is a Speech Sound Disorder?
A speech sound disorder occurs when a child has persistent difficulty producing speech sounds beyond the age when they are typically expected to develop. Speech sound disorders may affect pronunciation, speech clarity (intelligibility), and a child's ability to communicate effectively with others.
Recent Research on Speech Sound Development
A large review by Crowe and McLeod analyzed speech sound development data from over 18,000 children in the United States. Most speech sounds were acquired by age 5, with only a few later-developing sounds continuing into the school-age years.
Speech Sounds By Age 3
M, B, P, N, H, W, D
Examples:
mama
baby
pop
no
hi
wow
dada
These sounds are often heard in children's first words and are considered the foundation of early speech development.
Speech Sounds By Age 4
G, K, F, T, NG, Y
Examples:
Go
Car
Fish
Two
Swing
Yes
Children are often becoming easier to understand as these sounds emerge.
Speech Sounds By Age 5
V, J, S, CH, L, Z, SH, Voiced TH
Examples:
Van
Jump
Sun
Cheese
Lion
Zoo
Shoe
The, This, Them
These sounds are commonly developing during the preschool years.
Speech Sounds By Age 6
R, Voiceless TH, ZH
Examples:
Red
Think
Treasure
Building Speech Through Play
While children develop speech sounds gradually over time, there are many ways parents can support speech development during everyday interactions.
One simple strategy is called speech sound stimulation.
Speech Sound Stimulation
Speech sound stimulation involves modeling fun sounds, sound effects, and exclamatory words during play and daily routines. Rather than asking children to repeat sounds, adults provide repeated opportunities to hear and experience them in meaningful contexts.
Examples include:
"Vroom! Beep beep!" while playing with cars
"Moo!" or "Roar!" during animal play
"Pop!" while blowing bubbles
"Crash!" or "Boom!" while building with blocks
"Uh-oh!" or "Oops!" when something falls
Many of these playful vocalizations contain early-developing speech sounds and are often easier for children to imitate than longer words.
Research suggests that speech sound stimulation through playful vocalizations can help build sound awareness and support early speech development, particularly for children who are just beginning to communicate.
The goal is not perfect pronunciation. Instead, focus on creating enjoyable opportunities for your child to listen, participate, and experiment with sounds during everyday interactions.
Is My Child Difficult to Understand?
While it is helpful to know when individual speech sounds typically develop, many parents are most concerned about whether their child can be understood. Being able to communicate clearly helps children express their wants and needs, participate in conversations, build relationships, and interact confidently with others.
As a general guideline:
Around age 2: Familiar listeners understand much of what a child says.
Around age 3: Speech becomes increasingly understandable to both familiar and unfamiliar listeners.
Around age 4: Most of a child's speech should be understood by unfamiliar listeners.
If your child is frequently difficult to understand, becomes frustrated when trying to communicate, or others often have trouble understanding them, it may be helpful to consult a speech-language pathologist.
Concerned About Your Child's Speech?
Every child develops at their own pace, and speech sound milestones are only one part of a child's overall communication development. While some variation is expected, certain signs may indicate that your child would benefit from a speech-language evaluation.
You may want to consult a speech-language pathologist (SLP) if:
Your child has very few consonant sounds.
Your child is difficult for familiar or unfamiliar listeners to understand.
Your child's speech has stopped progressing or seems to be developing very slowly.
Your child becomes frustrated when trying to communicate.
Family members frequently need to "translate" what your child is saying.
You have concerns about your child's speech, even if others tell you to "wait and see."
Schedule your free 30 minute consultation today to learn how Little Chatterbox can support your child's communication development.
The Little Chatterbox Way
At Little Chatterbox, speech development is supported through play, connection, and meaningful interactions. We create opportunities for children to hear, practice, and use speech sounds naturally during activities they enjoy.
When communication is engaging, motivating, and child-led, children are often more willing to participate, practice, and build new skills. Meaningful progress happens when children feel connected, engaged, and motivated to communicate.
About the Author
Tamara is the owner of Little Chatterbox, LLC and an SLP with experience across early Intervention, private practice, and school-based settings. Tamara's approach combines evidence-based practice with play, connection, and family-centered coaching.
References
Crowe, K., & McLeod, S. (2020). Children's English consonant acquisition in the United States: A review. American Journal of Speech-Language Pathology, 29(4), 2155–2169. https://doi.org/10.1044/2020_AJSLP-19-00168
