Thā '

Tha in isolated form

connected shapes
ـث	ـثـ	ثـ
from the right	both sides	to the left

Thā ' ( Arabic ثاء, DMG Ṯāʾ ) is the fourth letter of the Arabic alphabet . The numerical value 500 is assigned to it.

Emergence

Unlike most other Arabic letters, the Tha did not emerge directly from a Phoenician letter. In the early days of the Arabic language, the diacritical points were still missing, Tha was written exactly like Ta (see Rasm ). To distinguish the two letters, two points were later added to Ta and three points to Tha.

Sound value and transcription

The tha corresponds to the voiceless English "th" sound in thief or thought . In the DMG transcription, Tha is reproduced as an underlined "t" (ṯ), in the IPA phonetic transcription as [θ] .

The tha is a sun letter , i.e. i.e., a preceding al- (definite article) is assimilated.

Tha in Unicode

Unicode codepoint	U + 062B
Unicode name	ARABIC LETTER THEH
HTML	& # 1579;
ISO 8859-6	0xcb