The Letter Tha (ث): Abjad Value 500, Steadfastness & Reward

Tha is easy to spot and easy to miss. It is the same little tooth as Ba and Ta, but crowned with three dots, and it carries the soft “th” that English speakers know from think. Though it is not the most common letter, it opens a cluster of words about staying firm and earning reward.

What Is the Arabic Letter Tha (ث)?

Tha is the fourth letter of the modern Arabic alphabet and the twenty-third letter in the Abjad order. It makes a soft, unvoiced “th” sound, the same as the “th” in think or thin. In shape it is a simple tooth on the line, marked by three dots above.

What Is the Abjad Value of Tha?

In the Abjad system, also called Hisab al-Jummal, the Abjad value of Tha is 500. It is one of the “hundreds” letters, so it adds a large amount to a word’s total, and the value never changes with the letter’s position in a word.

Tha keeps the value 500 in both main systems, because it is not one of the six letters that shift between Mashriqi and Maghribi. So a word with Tha gives the same Tha contribution either way. For the full method, see the Abjad Calculation Rules, or get the value of any name in the Abjad Calculator.

Tha: The Letter of Steadfastness and Reward

Tha opens a family of words tied to firmness, trust, and reward. This is a fact of the language, not a property of the number.

It begins ثبات (Thabat, steadfastness), ثابت (Thabit, firm or fixed), ثواب (Thawab, reward), and ثقة (Thiqa, trust). The same root that gives “firm” also names a person of proven reliability, which is why thiqa became a term of praise for a trustworthy narrator.

Words of Firmness and Reward That Begin With Tha

You can check any of these in the calculator above, and switch the method to compare Mashriqi and Maghribi totals.

Companions and Names That Contain Tha

Tha appears in several well-known names from Islamic history, most famously in the name of the third caliph. The totals below are plain letter sums, shown for study only, and carry no ranking or hidden meaning.

Companions (Sahaba)

Female Companions and Names

Other Names That Contain Tha

Check any of these names yourself in the calculator above to see the running total build up letter by letter.

Everyday Words That Contain Tha

Beyond names, Tha turns up in common words for study, counting, and inheritance.

How to Write and Recognize Tha (ث)

Tha joins to the letters on both sides, so it has the full set of four forms. The body stays a simple tooth; only the connecting strokes change, while the three dots ride above.

Common Confusion: Ta (ت) vs. Tha (ث)

Ta and Tha are the same tooth-shaped body. The only visible difference is the number of dots, and that single extra dot changes the sound and the Abjad value:

Tha and the Six Extra Arabic Letters

Most Abjad letters have twins in the older Semitic alphabets, so Ta (400) matches Hebrew Tav and Ra (200) matches Hebrew Resh. Tha is different. It belongs to the six extra Arabic letters, traditionally called the rawadif, which Arabic added after the original twenty-two. These six were placed at the end of the count and given the highest values.

Tha is the first of these six, which is why its value opens the “five hundreds.” It has no single matching letter in Hebrew or Greek numerals, since those alphabets stopped at the older twenty-two.

Frequently Asked Questions