Voiced TH vs Z

clothe vs close: hear and say the difference

clothe and close are identical except for one sound: clothe has the voiced th, /ð/, and close has the z sound, /z/. Both buzz, but TH buzzes at the teeth with a wide, soft tongue while Z buzzes behind them through a narrow groove.

Listen

The two words

clothe

/kləʊð/

the voiced th

close

/kləʊz/

the z sound
Articulation

The difference

What actually changes

Both buzz, but TH buzzes at the teeth with a wide, soft tongue while Z buzzes behind them through a narrow groove.

clothe — /ð/

In the mouth
Lips
Relaxed, slightly apart.
Tongue
Tip touching the back or edge of the top front teeth.
Jaw
Slightly open.
Tongue and lips

close — /z/

In the mouth
Lips
Slightly spread.
Tongue
Tip near the ridge with a narrow groove — the same shape as S.
Jaw
Almost closed.
Tongue and lips
In context

Each word in a sentence

  • clothe

    They clothe the children warmly.

  • close

    Please close the window.

Who merges this

Why this pair is hard

French, German, Russian and Japanese typically replace voiced TH with z, so 'breathe' ends like 'breeze'. The tongue has to come forward past the teeth and flatten out; the voicing itself is already correct.

Questions

Straight answers

What is the difference between "clothe" and "close"?

One sound. clothe is /kləʊð/ and close is /kləʊz/ — everything else in the two words is identical, so that single contrast carries the whole meaning. Both buzz, but TH buzzes at the teeth with a wide, soft tongue while Z buzzes behind them through a narrow groove.

Why do I say "clothe" and "close" the same way?

French, German, Russian and Japanese typically replace voiced TH with z, so 'breathe' ends like 'breeze'. The tongue has to come forward past the teeth and flatten out; the voicing itself is already correct.

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 "clothe" and "close" 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.