(Ta) S. (Seen) the Surah opens with these, introductory letters from the

﴿طسٓۚ تِلۡكَ ءَايَٰتُ ٱلۡقُرۡءَانِ وَكِتَابٖ مُّبِينٍ ﴾
[النَّمل: 1]

(Ta) S. (Seen) the Surah opens with these, introductory letters from the Arabic Alphabet to draw attention to the miracle of the Quran which though written in the people's tongue, cannot be emulated. These are the divinely discoursed verses flowing with the precision and grace symbolic of the Quran, which is the spirit of truth guiding into all truth

﴿طس تلك آيات القرآن وكتاب مبين﴾ [النَّمل: 1]

Dr Kamal Omar
S. These (alphabets in this verse are) signs of Al-Quran and Kitab-un-Mobin

Dr Laleh Bakhtiar
That are the signs of the Quran and a clear Book

Dr Munir Munshey
Ta, seen. These are the verses of the Qur´an _ a clear lucid book

Edward Henry Palmer
Those are the signs of the Qur'an and the perspicuous Book

Farook Malik
Tua Sin. These are verses of the Qur’an, the Glorious Book

George Sale
These are the signs of the Koran, and of the perspicuous book

Maududi
Ta´. Sin. These are the verses of the Qur´an and a Clear Book