ConceptCONCEPTMind Your Future
Part One · Foundations · Level A1 to A2

Unit 2
TH, as in think and this

/θ/ /ð/
Worksheet W02
From your coach. The sound that gives everyone away. Get the tongue between the teeth once and it stops being scary.
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These are the symbols you will see in a dictionary. Click any one to hear it. You do not need to memorize them.

Why this mattersYou say it constantly

These two sounds live inside the most common words in English: the, this, that, they, think, three, month. You cannot get through a sentence without them, which means whatever you do with th, you do it constantly.

Sometimes it changes your meaning. Think and sink are different words. So are thing and sing, path and pass, three and tree.

More often it costs you something subtler. An American hears the substitution immediately, on every sentence, and it is one of the clearest markers that English is not your first language.

An honest note. Measured strictly, very few English words depend on th alone, and some researchers argue you can skip it. This book teaches it anyway, not because th breaks meaning often, but because Americans notice it every single time.

What your language doesYou probably have two substitutes, not one

Almost certainly your language does not have these sounds. Very few do. So your mouth reaches for the nearest thing it already owns, and there are two common substitutes.

When you are speaking freely, th usually becomes t or d. Think comes out as tink, the as duh, mother as muhder.

When you slow down and concentrate, the same sounds often become s and z instead. Think comes out as sink, these as zeez.

Most people do both and never notice. The second habit is the expensive one. Tink costs you polish. Sink costs you the word.

Expect the voiced one to be harder. This, that, mother are more difficult than think, three, path, and they are usually the last thing to click. Two new things are happening at once: a new way of moving air, and a voicing choice you are not yet paying attention to.

Tink costs you polish. Sink costs you the word.
Common trap

Most people do both substitutes and never notice. The s and z habit is the expensive one, because it changes the word. And expect the buzzing th in this, that, mother to be the last to click.

How to make itA tiny, polite air leak

The quiet one, in think. Rest your tongue tip lightly against your top front teeth, or just under them. Blow air past it. No voice.

The buzzing one, in this. Same position. Now switch your voice on so your throat buzzes.

The picture to hold: a tiny, polite air leak between your tongue and your teeth, like letting the air out of a bicycle tire very slowly.

Do this at a mirror. You should be able to see your tongue tip appear between your teeth. If you cannot see it, it is not there. For the buzzing one, put a hand on your throat and feel for the buzz.

Mirror check

Do this at a mirror. You should see your tongue tip between your teeth. If you cannot see it, it is not there yet. For the buzzing one, put a hand on your throat and feel the buzz.

Side view of the mouth, showing how the sound is made

Train your ear

I play one word. Tap the one you heard. No speaking yet, just listening.

Tap play to start.
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Minimal pairsThe two words, side by side

Play each pair deliberately and feel the one difference. This is where the sound stops being abstract.

Say itWord banks

The quiet th

The buzzing th

In a sentencePut it under pressure

Tongue twisters

Record and compareSee the shape of your voice

Pick anything above, then record yourself saying it. Your recording appears in red over the model in gray. You are comparing shapes, not chasing a score.

Choose a word or sentence above
ModelYou
Nothing selected

Check yourself

You say I sink so when reading aloud, but I tink so when you are talking. Is that two problems or one?

One. Your language has no th, and your mouth repairs it two different ways depending on how hard you are concentrating. Practice both, but treat sink as the priority, because that one changes the word.