As it is known, there are three minimum components to learning any language at a certain level. These are vocabulary, morphology and sentence knowledge (Syntax). The vocabulary of a language develops over time in parallel with the effort spent on that language. Information about the shape of words is obtained by learning the rules set forth by the branch of science called morphology. Sentence knowledge is achieved by assimilating syntax knowledge, which consists of transforming the structural elements obtained through grammatical knowledge into sentence form. Structurally, considering the connection function of the vowel between the elements, the letters that fall within the scope of analysis of the nahv in correspond to a very small area within the broad Arabic linguistics we have mentioned, but when the subject is examined locally, a wide research area is encountered. One of the structures that deserve this specific research is the letter bā (ب). Because even in cases where it does not contribute to the meaning (surplus), the letter in question has become an auxiliary element that establishes a semantic link between the verb or words derived from the verb and other sentence elements. In this context, it is an important actor that gives clues about the verb's situations such as time, place, reason, tool, force, type of expression, transitive or intransitive nature. Based on its broad functional features, in this study, the letter bā, which is in the second row of the Arabic alphabet and is one of the most important letters in terms of its usage area and semantic value, was examined in the context of Ḥurūf al-maʻānī. In the research, examples on the subject were tried to be given mainly from the al-Qurʼān al-Karīm; Situations in which the letter bā means something and when it does not mean anything on its own along with its cer (jarr) function have been tried to be revealed by using the basic sources of the subject.