The following letters are the most distinctive sounds in Arabic and many of them don't have equivalent to Latin sounds.

Trans.	Letter	Description
H		Stressed “H”, but a pure “h”
kh		Similar to the “ch” in the German family name Bach
S		Stressed “S” [notice the difference between and ]
D		Stressed “D” [notice the difference between and ]
T		Stressed “T” [notice the difference between and ]
‹		No similarity in western language, a sound which starts deep in the throat
gh		Specific to Arabic, similar to highly expressed rolled “r” [like gargling]
q		Type of “k” sound but pronounced deep in the throat [notice the difference between and ]
‘		glottal stop