What does “ al-Asma al-Husna” mean? Here is the meaning of the “ al-Asma al-Husna”.
Being an adjective clause formed with the combination of the words “asma”, which is the plural form of the word “ism” meaning “name” in Arabic, and “husna”, which means “the most beautiful”, “al-asma al-husna” is a term used for all names of Allah the Exalted and means “the most beautiful names”. The most beautiful names belong to Allah, as stated in the Holy Qur’an as, “Allah – there is no deity except Him. To Him belong the best names.” (Ta-Ha, 20/8); “…to Him belong the best names. Whatever is in the heavens and earth is exalting Him. And He is the Exalted in Might, the Wise.” (Hashr, 59/24). Because He (swt) is the possessor all the perfection and the best attributes. His names are sacred characterizations that express the most exalted and absolute supremacy.
Allah the Exalted has many names mentioned in the Qur’an and authentic hadiths. Servants know and love Allah by learning these names and become true servants to Him (swt). By stating as, “And to Allah belong the best names, so invoke Him by them. …” (A‘raf, 7/180) the Qur’an asks people to invoke Him by al-asma al-husna. The fact that al-asma al-husna is more than one does not require that the being they refer be more than one. All these names refer to the one God, Allah: “Say, ‘Call upon Allah or call upon the Most Merciful [ar-Rahman]. Whichever [name] you call – to Him belong the best names.’” (Isra, 17/110)
Source: Presidency Of Religious Affairs The Turkey, High Board of Religious Affairs FATWAS