How to Pronounce THS sound American English

The combination of the th [θ] and
ss consonant sounds can be tricky.

I often hear it pronounced ‘th,’ simply without
the S, as in ‘month,’ when it should be ‘months.’

For example: 2 month, 3 month.

Well that’s singular and of course
we need to say the plural, thss.

Both of these sounds are unvoiced.

That means you make the sound only by passing air,
no sound actually produced in your vocal cords.

For the th sound, the tongue
begins through the teeth. Th, th.

So to make this sound, you simply
pull your tongue back into your mouth

while you keep the pressure of air coming through.

Thss, thss. Months, months.