Let's See Most Famous Spells from  HARRY POTTER before Return to Hogwarts

Wingardium  Leviosa

One of the first spells taught to underclassmen at Hogwarts, this levitation charm can make objects like feathers fly or levitate.

Lumos

A charm that illuminated the tip of the caster's wand, allowing the caster to see in the dark.

Alohomora

Forgot your keys? Sneaking into a place you don't belong? This unlocking charm means you'll never need a locksmith again.

Expecto  Patronum

This powerful defensive incantation uses a happy memory to conjure something positive, like a silvery-white animal that can chase off Dementors.