Knowing the different meanings of each word in the Qur'an will help us better understand what God means. "Nas" is from the root "Anasa" and is mentioned in most books of Al-Vojouh and Al-Nazaer, as a polysemous word, for which a total of nineteen aspects have been enumerated. For the reason the relationship between these nineteen meanings, Nas can be considered as polysemous words, as opposed to homonymy in the Qur'an. The principled polysemy model is one of the new models of cognitive linguistics that several linguists, including Tyler and Evans, have applied to different polysemous words such as prepositions and sometimes verbs, and have completed the criteria of this theory step by step. Matching the polysemy of the word Nas with the principled polysemy model helps to understand the nineteenth relation of the meaning of Nas and to state with certainty that Nas is not a "homonymy". Using the principled polysemy model, prototype meaning and distinct meanings of Nas were identified. In addition, the context of the verses and the view of the commentators show that between the thirteen aspects of the word "Nas", there is a clear semantic line such as "a group of people" which is called a prototype concept in the principled polysemy model. The other six aspects of the word "Nas" were returned to "singular and special persons", which most lexicographers considered not a change of meaning but the assignment of meaning from the general meaning.