Allah الله is one of 99 names of God - the almighty, the creator - (SWT).
The correct translation of God is إله. It is written إله but pronounced إلاه (ilaah).
Example:
وَإِلَٰهُكُمْ إِلَٰهٌ وَاحِدٌ ۖ لَّا إِلَٰهَ إِلَّا هُوَ الرَّحْمَٰنُ الرَّحِيمُ
سورة البقرة، آية 163
And your god is one God. There is no deity [worthy of worship] except Him, the Entirely Merciful, the Especially Merciful.
Surat Al-Baqara, verse 163.
Another word is رب which means Lord or Owner. This can be used for human-being, unlike إله, which is only used to refer to God.
الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ
سورة الفاتحة، آية 2
All praise is due to Allah, Lord of the worlds
Al-Faatiha, verse 2