How to say the voiced th

Th makes a voiced or unvoiced sound, depending on the word. The only difference is that one is voiced, and the other is unvoiced.

To make the voiced th sound, open your mouth slightly, and make a vowel sound. As you’re making the vowel sound, slowly bring your tongue towards your teeth. When the sound changes, and your tongue starts to vibrate, you are making the th sound. The tip of your tongue will be between your teeth, almost touching your teeth.

This is a soft action; don’t do anything forceful when saying the th. Also the th is not a short sound; make it somewhat long. (The th is a sound that is possible to hold continuously, as long as you have air in your lungs.)

Some sentences to practice the voiced th sound: (“with” has the unvoiced th sound, but the other examples of th in these sentences are all voiced.)

Their mother was gathering the clothing together.
They’ve had a lot of bother with the weather.
They’d rather gather those berries with their mother.
There’s their brother, together with their father.
Therefore they’d rather go together.
They should ask their father or their mother.
There is another feather over there.
They’d rather bathe with their clothing on.

Give “The” Some Time

“The” is a very common word, and a good word to practice. Read some text, and focus on “the.” To make “the” sound good, it alway needs to be said slowly. “Th” in any word will sound better if you let it have some time. Also, the vowel in “the” is the most common sound in American English, and in “the” it is a very long sound. So practicing “the” will help you get used to making vowels long.

Usually the vowel in “the” is the same as in “hut”, “luck”, and “but”. If “the” is before a word that starts with a vowel sound, the vowel in “the” is the same as in “heat”, “feel”, and “feet”. Here’s more about that vowel. Both these vowel sounds need to be long; the longer you make them, the more American you will sound.

Here’s some random text to use for practice: https://simple.wikipedia.org/wiki/Archosaur