Backing
/d/ → /g/
Worth a speech-language evaluation when noticed at any age.
What helps →
Show the tongue tip up to the bumpy spot behind the top teeth. /d/ uses the front of the tongue; /g/ uses the back.
Speech Sound Guide
The /d/ sound typically develops by age 3. This guide covers when /d/ develops, what typically goes wrong, simple ways to practice it, and over 90 /d/ words organized by position.
Developmental norms — when the /d/ sound typically emerges and is mastered.
Source: McLeod & Crowe (2018); Crowe & McLeod (2020), AJSLP.
A child still substituting or distorting /d/ after age 3 is a good candidate for a speech-language evaluation — earlier if they're hard to understand or frustrated.
Sound Safari's 24-sound screener checks against the McLeod & Crowe norms above.
What typically goes wrong — and whether it's age-appropriate.
/d/ → /g/
Worth a speech-language evaluation when noticed at any age.
What helps →
Show the tongue tip up to the bumpy spot behind the top teeth. /d/ uses the front of the tongue; /g/ uses the back.
/d/ → /t/
Typically resolves on its own by around age 4; worth a check-in if it persists.
What helps →
Touch the throat — /d/ buzzes, /t/ is silent. Have the child feel the buzz of their vocal cords on each /d/.
Practical starting points for parents and SLPs. Always follow your SLP's plan if your child is in therapy.
Every word from the Sound Safari practice library. The /d/ in each word is bolded.
Minimal pairs differ by a single sound — the heart of phonological therapy. Tap a card to hear it, or tap “vs” to hear a pair back-to-back.
More /d/ minimal pairs — tap a contrast to explore
/d/ at the start · 14
/d/ in the middle · 2
/d/ at the end · 14
Most children produce /d/ correctly by age 3. About half can do it by age 2. /d/ develops alongside /t/ and other early stops.
Both patterns (backing to /g/ and devoicing to /t/) are developmentally typical up to about age 3. If they persist past age 3, an SLP check-in is worthwhile.
/d/ requires both precise tongue tip placement AND voicing. Some children get one right but not the other — they may say /t/ (right place, wrong voicing) or /g/ (right voicing, wrong place).
Help them feel for the bumpy spot, touch their throat to feel the buzz, and use minimal pairs (do/two, dog/log) to train both voicing and placement.
If /d/ is being replaced with /g/, /t/, or omitted after age 3, see an SLP.
Yes — /d/ is highly treatable at any age. The tongue position is easy to demonstrate and the voicing is easy to feel.
Sounds that pair, contrast, or are commonly confused with /d/.