How to produce /ʃ/, common errors, and practice activities
Sound Symbol
/ʃ/
Typical Development
3-5 years
Expected Mastery
4-5 years
The SH sound is typically one of the earlier 'later-developing' sounds, usually mastered between ages 4-5. It requires shaping the tongue differently than S and rounding the lips—a combination that takes practice. Children often substitute S for SH or produce a distorted version. SH is important for many common words and affects clarity significantly.
Tongue is wide and positioned slightly farther back than for S. The sides touch the upper back teeth. The tongue tip may be up or down.
Lips are rounded and pushed forward slightly, like making a kiss. This is key for the SH sound.
Teeth are close together but not touching, creating a wide, shallow space for air.
Air flows broadly over the tongue and through rounded lips, creating a 'hushing' sound. SH is voiceless.
The most common error. Lips don't round and the tongue is too far forward, producing S instead of SH.
Air escapes over the sides of the tongue instead of broadly over the center.
The tongue touches, stopping airflow briefly before releasing, creating CH instead of continuous SH.
Less common, but some children substitute TH when the tongue comes too far forward.
SH Sound at the beginning
SH Sound in the middle
SH Sound at the end
Try these activities at home to help your child practice the SH Sound.
Practice the 'be quiet' shush: 'Shhhh!' Hold the sound for 5 seconds, feeling the rounded lips and air flow.
Make kiss lips (rounded) and say 'shhh.' Compare to smile lips saying 'sss.' Feel and see the difference.
Make ocean wave sounds: 'SHHHHshhhhSHHH' rising and falling. This practices the continuous airflow of SH.
Sort pictures by S or SH sound. 'Sock starts with S. Shoe starts with SH.' This builds awareness of the difference.
Consider a speech-language evaluation if:
Most children master the SH sound by age 4-5. Some development continues through age 5 for SH in all word positions. If your child consistently substitutes S for SH past age 5, consider a speech evaluation.
Both are 'hissing' sounds, but they differ in tongue position and lip shape. S uses a narrow tongue position with lips in a smile. SH uses a wider tongue position with rounded lips. The lip rounding is often the key difference children need to learn.
Reversing S and SH is not typical and suggests the child is confused about the difference between these sounds. An evaluation can help determine if therapy would help sort out this confusion.
SH, CH, and J all use similar tongue position and lip rounding. CH is like 'T+SH' blended together. J is like 'D+SH' blended. Children who struggle with SH often have difficulty with CH and J too.
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