The noun that begins with does not accept the tanween

The answer is: right.

A noun that begins with a consonant is not acceptable. This is true for all names that begin with consonants such as Nun, Bal, Laam, Taif, and Taif. Tanween is a consonant that we hear but do not write, so it is not accepted when starting with a noun. This may be confusing to some, as tanween is often used in Arabic. However, it is not accepted in nouns starting with a consonant. This applies to all nouns regardless of language. In order to ensure correct spelling, it is important to remember that nunation cannot be used for nouns that begin with a consonant.