Arabic language, Semitic language in a large area including North Africa, most of the Arabian Peninsula , and other parts of the Middle East

Arabic is the spoken language of roughly 422 million people.  Even more people are familiar with the language because it is the language of Islam, practiced by over 1.8 billion people.  Arabic words have been integrated into other languages as well (especially Spanish, Persian, and other southeast Asian languages).  At this point, Arabic is the 5th most spoken language in the world!

Sources:

https://wisc.pb.unizin.org/lctlresources/chapter/اللغة-العربية-the-arabic-language/

https://arabicwithoutwalls.ucdavis.edu/alifbaa_unit1/ab1_culture_history.html