Voiceless TH vs T

tenth vs tent: hear and say the difference

tenth and tent are identical except for one sound: tenth has the voiceless th, /θ/, and tent has the t sound, /t/. T stops the air completely with the tongue on the ridge; TH never stops it — the tongue touches the teeth lightly and the air keeps hissing through.

Listen

The two words

tenth

/tenθ/

the voiceless th

tent

/tent/

the t sound
Articulation

The difference

What actually changes

T stops the air completely with the tongue on the ridge; TH never stops it — the tongue touches the teeth lightly and the air keeps hissing through.

tenth — /θ/

In the mouth
Lips
Relaxed and slightly apart — they must not close.
Tongue
Tip just touching, or peeking between, the front teeth.
Jaw
Slightly open so the tongue can reach the teeth.
Tongue and lips

tent — /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
In context

Each word in a sentence

  • tenth

    This is my tenth attempt.

  • tent

    The tent leaked all night.

Who merges this

Why this pair is hard

Hindi, Urdu, Punjabi, Bengali, Tamil, Thai and Vietnamese all map English TH onto a dental t, so the airflow stops where English wants friction. The fix is the same for all of them: move the tip forward to the teeth and refuse to close off the air.

Questions

Straight answers

What is the difference between "tenth" and "tent"?

One sound. tenth is /tenθ/ and tent is /tent/ — everything else in the two words is identical, so that single contrast carries the whole meaning. T stops the air completely with the tongue on the ridge; TH never stops it — the tongue touches the teeth lightly and the air keeps hissing through.

Why do I say "tenth" and "tent" the same way?

Hindi, Urdu, Punjabi, Bengali, Tamil, Thai and Vietnamese all map English TH onto a dental t, so the airflow stops where English wants friction. The fix is the same for all of them: move the tip forward to the teeth and refuse to close off the air.

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 "tenth" and "tent" 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.