/θ/ vs /f/

Voiceless TH /θ/ (three) vs /f/ (free).

Pro drill

Drill this contrast

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deaf
/dɛf/
vs

death
/dɛθ/

Coda
free
/fɹi/
vs

three
/fɹiː/

Onset
loaf
/loʊf/
vs

loath
/loʊθ/

Coda
thin
/θɪn/
vs

fin
drill word /fɪn/

Onset
thought
/θɔt/
vs

fought
drill word /fɔt/

Onset
think
[ˈθæŋk]
vs

fink
/fɪŋk/

Onset
thorough
/ˈθʌɹoʊ/
vs

furrow
/ˈfʌɹoʊ/

Onset
thigh
/θaɪ/
vs

fie
/faɪ/

Onset
thaw
/θɔː/
vs

faugh
/fɔː/

Onset
threatful
/ˈθrɛtfəl/
vs

fretful
/ˈfrɛt.fəl/

Onset
throw
/θɹoʊ/
vs

fro
/fɹoʊ/

Onset
thole
/θoʊl/
vs

foal
/foʊl/

Onset
thallus
/ˈθæləs/
vs

phallus
/ˈfæl.əs/

Onset