T vs D

coat vs code: hear and say the difference

coat and code are identical except for one sound: coat has the t sound, /t/, and code has the d sound, /d/. Same tongue tip on the same ridge: T releases with a puff and no voice, D keeps the hum going straight into the vowel.

Listen

The two words

coat

/kəʊt/

the t sound

code

/kəʊd/

the d sound
Articulation

The difference

What actually changes

Same tongue tip on the same ridge: T releases with a puff and no voice, D keeps the hum going straight into the vowel.

coat — /t/

In the mouth
Lips
Neutral and slightly apart.
Tongue
Tip up against the bumpy ridge behind the top teeth, sides sealed.
Jaw
Slightly open and still.
Tongue and lips

code — /d/

In the mouth
Lips
Neutral, slightly apart.
Tongue
Tip on the ridge behind the top teeth, sides sealed.
Jaw
Slightly open.
Tongue and lips
In context

Each word in a sentence

  • coat

    Take your coat, it is cold.

  • code

    Enter the code at the gate.

Who merges this

Why this pair is hard

German, Russian and Turkish devoice a final consonant, so 'bad' ends like 'bat'. Spanish, French and Italian have an unaspirated dental t, so an initial T can be heard as D. Mandarin, Cantonese and Korean have no voiced stops, so the contrast has to be rebuilt on the hum.

Questions

Straight answers

What is the difference between "coat" and "code"?

One sound. coat is /kəʊt/ and code is /kəʊd/ — everything else in the two words is identical, so that single contrast carries the whole meaning. Same tongue tip on the same ridge: T releases with a puff and no voice, D keeps the hum going straight into the vowel.

Why do I say "coat" and "code" the same way?

German, Russian and Turkish devoice a final consonant, so 'bad' ends like 'bat'. Spanish, French and Italian have an unaspirated dental t, so an initial T can be heard as D. Mandarin, Cantonese and Korean have no voiced stops, so the contrast has to be rebuilt on the hum.

Should I train my ear or my mouth first?

Your ear. If you cannot reliably hear which word was said, your mouth has no target to aim at, and drilling produces a sound you cannot check. Run the listening test on this page until you are scoring four or five out of five, then record the pair.

Practise this word

Say "coat" and "code" and see which one you said

One take covers both words: reference mode aligns each sound against its target, so the contrast comes back scored on both sides. Free, private, in your browser.