aid and aide - the difference
 
Aid means help or assistance. (To aid means to help or to assist.)

Aide means helper or assistant. (In other words, an aide is a person.)
 

    Grammar Checker

Aid

The word aid means help or assistance. It is commonly seen as an adjective, a noun and a verb. (As a verb, it means to help or to assist.)

Examples:

Be bold and mighty powers will come to your aid.  (Basil King)

I have known sorrow and learned to aid the wretched.  (Virgil (70 BC - 19 BC))

Aide

The noun aide means a helper or an assistant. An aide is a person.

Examples:

General McChrystal and his aides told the unvarnished truth.

The Libyan leader caused a scene at the African Heads of State Summit in Munyonyo when he slapped one of his aides for taking him to a wrong venue.

See also:

What are adjectives?
List of easily confused words