Final TH Words for Speech Therapy
Words that end on TH — bath, tooth, math, teeth, with. Almost all of them carry the voiceless TH, which is the latest-acquired consonant in English and often the last item left on an articulation plan.
Word list
1-syllable
- bath
- beth
- birth
- booth
- both
- breath
- cloth
- death
- depth
- earth
- faith
- fifth
- forth
- fourth
- growth
- health
- heath
- length
- math
- month
- mouth
- myth
- north
- path
- ruth
- sixth
- smith
- smooth
- south
- strength
- teeth
- tooth
- truth
- wealth
- width
- with
- worth
- youth
2-syllable
- bandwidth
- beneath
- seventh
3-syllable
- commonwealth
Words without competing sounds
- bath
- beth
- birth
- booth
- both
- breath
- cloth
- earth
- growth
- health
- heath
- length
- math
- month
- mouth
- myth
- north
- path
- ruth
- wealth
- with
- worth
- youth
- beneath
- commonwealth
Related lists
Other TH positions
Other sounds in the final position
Take Final TH to the next level
Ready-made, pronunciation-checked practice beyond single words:
Worksheet preview
/th/: 42 words · competing-free 25Generate a custom worksheet for this sound
Generate your worksheetAbout Final TH words
90% of children produce voiceless TH by 6;11 (Crowe & McLeod, 2020), later than any other consonant, so a final TH error in a five-year-old is usually within normal limits. In word-final position the substitution is again /f/ — bath becomes baf, tooth becomes toof.
Final TH is frequently the last item on an articulation plan, and not only because of the age norm: the sound is quiet, brief, and easy to omit entirely at the end of a word without the listener noticing the difference between a substitution and a deletion.
Practising Final TH
Because the sound is weak, exaggerated length helps — hold the TH well past its natural duration so the child can both see and hear it. Single-syllable entries such as bath and math give the cleanest listening conditions.
Acquisition ages: Crowe & McLeod (2020), American Journal of Speech-Language Pathology. Educational content — an SLP chooses the target for a specific child.
Frequently asked questions
- How many words have /th/ in the final position?
- Our dictionary lists 42 final /th/ words suitable for speech therapy practice.
- What are some example final /th/ words?
- Examples include bath, beth, birth, booth, both, breath, cloth, death.
- Are all final TH words voiceless?
- Nearly all common ones are — bath, math, tooth, mouth. A few, such as smooth and breathe, carry the voiced TH, so it is worth checking the word rather than assuming from position.
- At what age should final TH be correct?
- 90% of US children produce the voiceless TH by 6;11 (Crowe & McLeod, 2020). Substituting /f/ before that age is common and generally does not warrant treatment on its own.
When do kids master each sound?
Free interactive checker: pick a sound and an age, see the research norm — all 24 consonants, sourced from Crowe & McLeod (2020).
Open the checker →