Raa, Zaay, Seen (ر ز س)
A hook shape and a row of teeth
Raa, Zaay, and Seen bring three more sounds. Raa and Zaay share a small curved hook below the line — Raa has no dot, Zaay has one dot on top. Seen has three little 'teeth' along the top and no dots at all — like a tiny row of triangles.
ر
raa (r)A rolled or tapped 'r', like in Spanish "pero".
Say it: Raa is a small curved hook below the line, no dot. Try a light rolled "r" with the tip of the tongue.
ز
zaay (z)Sounds like the 'z' in "zoo".
Say it: Zaay is the same hook shape as Raa but with one dot on top. Say "z" as in "zoo".
س
seen (s)Sounds like the 's' in "sun".
Say it: Seen has three little 'teeth' along the top, no dots. Say "s" as in "sun".
سمكة
samaka
fish
Which letter has three 'teeth' and no dots?
AcademicReference — Brustad, Al-Batal & Al-Tonsi, Alif Baa, 3rd ed., Georgetown University Press, 2010