initial th (unvoiced)
three | think | thought | theory |
|---|---|---|---|
thin | thirst | third | thirty |
thrift | thread | thimble | thumb |
thistle | thirsty | thunder | thermal |
through | throw | threw | thrown |
thug | thump | thwart | thyroid |
middle th (unvoiced)
healthy | wealthy | method | methane |
|---|---|---|---|
truthful | faithful | within | without |
birthday | worthwhile | author | Arthur |