At the tenth point the tongue tip approaches the edges of the upper front teeth for ẓāʾ (ظ), dhāl (ذ), and thāʾ (ث). This differs from point nine, where the contact is nearer the teeth's roots.
Practice ظَ، ذَ، ثَ. Do not automatically substitute z for ẓ or s for th. These may be familiar substitutions in other languages but are not the distinct Arabic articulations described here.
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Point 10: Edge of upper incisors — ẓ, dh, th
Makhārij al-Ḥurūf — The Fifteen Articulation Points
At the tenth point the tongue tip approaches the edges of the upper front teeth for ẓāʾ (ظ), dhāl (ذ), and thāʾ (ث). This differs from point nine, where the contact is nearer the teeth's roots.
Practice ظَ، ذَ، ثَ. Do not automatically substitute z for ẓ or s for th. These may be familiar substitutions in other languages but are not the distinct Arabic articulations described here.