Thaa

The unvoiced th of thin — same shape as baa and taa, three dots above instead of one or two.

Sound

In careful Modern Standard Arabic, thaa is /θ/ — the th in English thin, think, bath: a voiceless interdental fricative, made with the tip of the tongue between the teeth. It is not the voiced th of this or that — that sound is dhaal (ذ), a separate letter.

English speakers find this sound easy in MSA. The trap is dialect: in much of the spoken Arab world, thaa shifts. In Egyptian and most urban Levantine dialects it is realised as /t/ in inherited vocabulary (ثَلاثة thalaatha becomes talaata) and as /s/ in classical or learned vocabulary (ثَقافة thaqaafa becomes saqaafa). The same word can therefore be heard with three different consonants depending on who is speaking and how formal they are being. Bedouin and Gulf dialects, plus much of Iraq and Tunisia, preserve /θ/ more reliably.

Forms

Connecting behavior

Thaa is a normal two-sided connector, joining freely to letters on both sides. As with baa and taa, the bowl is shallow and flattens further in connected positions; the three dots carry the visual identity of the letter.

Easy to confuse with

Thaa shares the baa-skeleton with baa (one dot below), taa (two dots above), and nuun (one dot above, but with a deeper bowl in isolated and final positions). The whole game is dot count and dot placement. Three dots above means thaa.

Examples in common words

A note on handwriting

The three dots are nearly always drawn as a small upward caret or triangle — ^ — sitting above the bowl, not as three separate pinpricks. This is the conventional shorthand and is unambiguous to native readers. The writer's only job is to make sure the mark is clearly trifold, not the simple dash that means taa.