How to Pronounce Final TH in English Without Freezing

If you can say think slowly but freeze on with, both, breath, or month, you are not broken. Final TH is awkward because English asks you to put your tongue in a visible, exposed place at the exact moment the word is ending. Many learners can make the sound at the start of a word, then lose it at the end because they pull the tongue back too early.

Today’s goal is simple: make the ending clear enough that people hear the word you meant.

This is a real learner problem. One Reddit thread is titled “I can’t pronounce the ‘th’ sound at the end of a word”, and another learner describes months as a “final boss” in a thread about tips for the TH sound. Final TH is small, but it feels big in the mouth.

First, know which TH you are making

English has two common TH sounds:

• /θ/ as in think, both, breath, month. This one is voiceless. Your vocal cords do not vibrate.
• /ð/ as in this, breathe, with, smooth. This one is voiced. Your vocal cords vibrate.

The British Council’s phonemic resources list /θ/ among voiceless consonants, and their classroom material for th words gives a simple placement cue: press the tip of your tongue to the back of your upper front teeth (British Council voiced/unvoiced consonants, British Council TH words).

For practice, use this cue:

Put the tongue forward. Let the air pass. Do not bite.

Your tongue can touch the back of the top teeth, or it can come very slightly between the teeth. Either way, the sound is made by a narrow stream of air. If you block the air completely, you get something closer to t or d. If you pull the tongue back, you may get s, z, f, or v, depending on your first language.

Why final TH feels harder than initial TH

At the start of a word, you have time to prepare: think, this, those.

At the end of a word, your brain wants to close the word quickly: with, both, truth, month. So the tongue often retreats before the sound is finished.

Try this test:

1. Say thhhhh for two seconds.
2. Say with and hold the last sound: withhhh.
3. Say it naturally: with.

If step 2 works but step 3 disappears, your problem is not the sound itself. Your problem is timing. Train the tongue to stay forward until the word is complete.

The hold-and-release drill

Start with a long final sound:

• bo-thhhh
• brea-thhhh
• mon-thhhh
• wi-thhhh
• smoo-thhhh

Then shorten it:

• bo-thh
• brea-thh
• mon-thh
• wi-thh
• smoo-thh

Then make it normal:

• both
• breath
• month
• with
• smooth

Do not add a vowel at the end. Avoid both-uh, with-uh, month-uh.

Separate breath and breathe

This pair forces you to hear the difference between the two TH sounds.

• breath = /θ/, voiceless, like air: “Take a deep breath.”
• breathe = /ð/, voiced, with vibration: “Please breathe slowly.”

Put two fingers on your throat.

Say breath. You should feel no vibration on the final TH.

Say breathe. You should feel vibration on the final TH.

Now use short phrases:

• deep breath
• one breath
• breathe in
• breathe out
• breathe with me

A reference site like Forvo can give you native-speaker word recordings, while YouGlish can show real people using a word or phrase in YouTube clips. Apps such as ELSA Speak market AI feedback on pronunciation, fluency, stress, and intonation. They can be useful, but do not let a score replace your ears. Record yourself and check whether the final sound is actually present.

If you use SoundNativ, use it for this exact job: one target sound, short phrases, record, compare, repeat. Final TH improves faster when the practice is narrow.

The with problem

With is annoying because English speakers do not all treat it the same way. Some pronounce it with voiced /ð/, and in fast speech the ending may become very light. Still, for learners, it is worth practicing a clear version first:

• with me
• with you
• with this
• with both
• with three people

Try not to turn with me into wiv me unless that is a feature of the accent you are intentionally copying. For clear international English, train the tongue-forward version first. Later, you can relax it in fast speech.

Mini drill:

1. with — hold the tongue forward.
2. with me — keep th light, then move to m.
3. with them — now you have two TH sounds close together.
4. I’ll go with them — keep the phrase smooth, not slow and robotic.

The month and months problem

Month is hard because the mouth moves from n to th. Months is harder because you add s after th.

Do not begin with months. Build it.

Step 1:

• mun
• mun-th
• month

Step 2:

• one month
• this month
• next month

Step 3:

• two months
• six months
• three months

For months, think of a quick slide:

n → th → s

The tongue touches for n, moves forward for th, then the air narrows for s. It is fine if your th is very short. It should not become a big extra syllable: avoid month-uhs.

Some native speakers simplify difficult clusters in fast casual speech, and Reddit discussions about months mention that variation too (example thread). For learners, I would still practice the careful version first. You can always reduce later.

Use sentence drills, not only word drills

Final sounds often disappear when you move from a word list into real speaking. So after five clean repetitions, put the word into a sentence immediately.

Use these:

• I agree with both points.
• Let’s talk next month.
• Take a deep breath before you answer.
• The path is smooth.
• We worked with three clients.
• That’s the truth.

Now mark the important word in each sentence. Do not stress every word equally.

• I agree with both points.
• Let’s talk next month.
• Take a deep breath before you answer.

This matters because pronunciation is not only individual sounds. Connected speech involves changes across word boundaries, reductions, linking, and rhythm; Iowa State’s teaching pronunciation materials describe connected speech as the way words are pronounced in streams of speech rather than as isolated dictionary forms (Iowa State Pressbooks: Connected Speech). If your TH is clear in a word list but gone in a sentence, you need sentence practice.

A five-minute final TH routine

Do this once a day for one week.

Minute 1: placement

Hold thhhhh five times. Then alternate:

• ssss — thhhh
• ffff — thhhh
• tttt — thhhh

Feel how TH is different. The tongue is forward and the air is not fully blocked.

Minute 2: word pairs

Say each pair three times:

• breath / breathe
• teeth / teethe
• cloth / clothe
• both / boat
• with / wit

Minute 3: difficult words

Slow, then normal:

• with
• both
• breath
• month
• months
• truth
• smooth

Minute 4: phrases

• with both
• next month
• six months
• deep breath
• smooth path

Minute 5: record two sentences

Record these:

• I’ll check with both teams next month.
• Take a deep breath and tell the truth.

Listen only for the final TH sounds. Do not judge your whole accent. One target at a time.

What success sounds like

Success is not a huge, theatrical TH. In natural English, final TH is often light. Success means the sound is present enough that the word does not turn into another word.

• both should not sound like boat.
• breath should not sound like bread.
• with should not always become wit.
• month should not become mun.

If you can hold the sound, shorten it, then keep it inside a sentence, you are doing the real work. Final TH stops being scary when your tongue learns one small habit: stay forward until the word is finished.