What is the universal definition of God?

A Supreme Being, with unlimited knowledge, unlimited powers, and is capable of using Energy to change energy into various forms, including into Matter. This Supreme Being is unlike any other, so there is no duplicate, and there is no way to describe what this Being might look like. With the ability to change energy, even changing Himself, He being Pure Intelligent Energy, this Being could be as huge as the Universe itself, being at all things are made of Energy. Or at times, this Being might be smaller then the smallest atom.

A higher power or deity who controls an aspect of nature and requires faith from humans in order to keep said aspect in their favor.

Well that's the definition for a polytheistic god.

God: the Father, Son, Holy Spirit

Intelligent Designer.

" Allah! There is no God save Him, the Alive, the Eternal. Neither slumber nor sleep overtaketh Him. Unto Him belongeth whatsoever is in the heavens and whatsoever is in the earth. Who is he that intercedeth with Him save by His leave? He knoweth that which is in front of them and that which is behind them, while they encompass nothing of His knowledge save what He will. His throne includeth the heavens and the earth, and He is never weary of preserving them. He is the Sublime, the Tremendous. "

Quran

God, when capitalized, typically means.

A powerful and knowledgeable creator being who interacts with humans in some fashion.

Omnipotence, omniscience, perfection, and immortal are all after-market options.

A supernatural deity possessing supernatural powers, yet typically undetectable to any form of measurement. Also typically manifesting in multiple forms yet claiming to be only one.

A poor explanation

You cannot define God. To define is to limit. God cannot be limited. God is infinite that the finite mind cannot grasp.

projecting the traits of a perfect human onto an imaginary perfect god......