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Free articulation word lists

TH Words for Speech Therapy

Find TH words by word position. Each list is checked against the CMU Pronouncing Dictionary and covers both the voiceless TH in think and the voiced TH in this.

TH words by position

Choose a word position to see the full verified list.

Initial TH words

The /th/ sound appears near the start of the word.

/th/
  • thank
  • theme
  • thick
  • thin
  • thing
  • think
  • thumb
  • theorem
  • theories
  • theory

Medial TH words

The /th/ sound appears inside the word.

/th/
  • author
  • bother
  • breathing
  • brother
  • clothing
  • either
  • gather
  • gothic
  • leather
  • mother

Final TH words

The /th/ sound appears near the end of the word.

/th/
  • bath
  • birth
  • booth
  • both
  • breath
  • cloth
  • earth
  • growth
  • heath
  • math

When is /th/ typically acquired?

  • TH (voiced) as in this — 90% of US children produce it by 5;11.
  • TH (voiceless) as in think — 90% of US children produce it by 6;11.

Crowe & McLeod (2020), American Journal of Speech-Language Pathology

Check any sound by age →

How to use these TH word lists

TH is one of the latest sounds children master, and replacing it with /f/ or /d/ — fumb for thumb, dis for this — is a common pattern. Start with the word position selected by the SLP and pick a small group of words that fits the learner at their current practice level.

The lists check where the TH sound appears in each pronunciation, not just the spelling. They do not choose a treatment target or replace clinical judgment.

Validation source

Word pronunciations are checked with the CMU Pronouncing Dictionary.

Free · 5 packs to start · no card

Create a custom TH practice pack

Choose the word position, age band and theme. Ga-loo builds a checked TH list and a print-ready pack: picture cards, a dab game, a data sheet and a home letter.

Form pre-filled with/th/
No card requiredNo student namesFailed generations refunded
One pack includesPractice pack
  • Picture cards: word, phrase, sentence
    8–16 verified words, each with its own picture plus a phrase and a sentence for the next level.
  • Say & dab game
    Big pictures with 10 dots each: 60 practice turns with no prep.
  • Data sheet + probe
    Mark 10 tries per word, then check untrained words for carryover.
  • Home practice letter (B&W)
    Simple steps for parents and a 7-day tracker that prints on any printer.

One print-ready PDF on US Letter. Any page you don’t need can be switched off before generating.

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

Frequently asked questions

What are some initial TH words?
Common initial TH words include thumb, think, three, thick, throw, and thunder. The full initial TH list has 61 verified words.
What are some medial TH words?
Medial TH words are matched on pronunciation rather than spelling, so the sound is really in that part of the spoken word. The full medial TH list has 64 verified words.
What are some final TH words?
Final TH words are matched on pronunciation rather than spelling, so the sound is really in that part of the spoken word. The full final TH list has 27 verified words.
When do children master the TH sound?
By Crowe & McLeod (2020), 90% of US children produce TH (voiced) by 5;11 and TH (voiceless) by 6;11.
What is the difference between voiced and voiceless TH?
Voiceless TH, as in think and bath, uses no voice; voiced TH, as in this and mother, turns the voice on. Both are spelled th, and these lists include both.
Can I make a printable TH sound worksheet?
Yes. Select /th/, choose a word position and theme, and Ga-loo will create a checked, printable PDF.