He who directs, manages, conducts, governs, meas- ures, plans every action which happens at any moment in the entire universe.
“For each (such person) there are (angels) in suc- cession. Before and behind him: they guard him by command of Allah. Verily never will Allah change the condition of a people until they change it themselves (with their own souls). But when (once) Allah willeth a people’s punishment, there can be no turning it back, NOR WILL THEY FIND, BESIDES HIM, ANY TO PROTECT.”
(13:11) The Holy Quran

From the root w-l-y with the classical Arabic connotations: to be near, close, nearby to be a friend, helper, supporter to defend, guard (lit. friendly dealing) to be in charge, to turn one toward something to be the master, owner, lord.
Allah is the sole planner, implementer, governor and ruler of all things.
He is the supportive, helpful master of all things.
He is the friendly and protective ruler and governor of all of creation.
