Allah

Allah is the Arabic word for God and refers to the one, supreme, and only deity worshiped in Islam. Allah is not a "different God" but the same God worshiped by Jews, the God of Abraham, Moses, and Jesus.

The Arabic word, Allah, is very unique term in its meaning because it has no feminine or masculine version, it is general neutral so it perfectly describe God because he is not man. Also, the word Allah has no plural form, it is uniquely one.
While the term "God" can be in plural form or it can be in feminine or masculine form.

Quran 112

"Say, ˹O Prophet,˺ “He is Allah—One ˹and Indivisible˺; Allah—the Sustainer ˹needed by all˺. He has never had offspring, nor was He born. And there is none comparable to Him.”