The apostrophe is a linguistic phenomenon that has historically been used in a number of languages of the world and still exists in the alphabets of many European languages. The implications caused by the the four-time change of Azerbaijani alphabet in different periods of history have always been obvious and, in fact, remain to this day. Azerbaijan, as a country divided into two parts, still uses two alphabets today. While the Republic of Azerbaijan with a total population of over 10 million people uses the Latin script, South Azerbaijan with a population of over 40 million people uses the Arabic script. The abolition of the apostrophe in modern Azerbaijani script several years ago led to a number of undesirable consequences. The existence of the apostle is associated with approximately 1,000 words. About 950 of them are Arabic-Persian words that entered the Azerbaijani language starting in the 7th-8th centuries. Although two-thirds of these approximately 950 words were in circulation from the late 19th to early 20th centuries, the number of those that are still in active use today is about 30. However, since classical literature is a daily presence in the lives of modern Azerbaijanis, it cannot be denied that words with apostrophes continue to live on. This makes it inevitable to retain the apostrophe in the modern Azerbaijani alphabet. The presented study analyzes the multifunctional properties of the apostrophe and substantiates the importance of its further use.