The /θ/ sound

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Tongue	The tip of the tongue comes through the teeth.
Jaw	The jaw and the mouth relax.
Air	Air passes through the mouth.
Vocal Chords	The vocal cords do not vibrate.

Examples of words with the /θ/ sound

thread /ˈ θ r ɛ d/	Pronounced by Matthew
thought /θ ɔ t/	Pronounced by Kimberly
throw /θ r o ʊ/	Pronounced by Justin
theater /ˈ θ i e ɪ t ə r/	Pronounced by Kimberly
think /θ ɪ ŋ k/	Pronounced by Joanna
beneath /b ɪ ˈ n i θ/	Pronounced by Kimberly
kenworth /ˈ k ɛ n ˌ w ɜ r θ/	Pronounced by Justin Pronounced by Joanna
bath /b æ θ/ /ˈbæθ/	Pronounced by Salli
ethan /ˈ i θ ə n/ /ˈi-θən/	Pronounced by Matthew
orthopedist /ˌ ɔ r θ ə ˈ p i d ə s t/	Pronounced by Joanna