aid, ade, aide

Aid or aid means to help or give assistance--
Can you aid us with suggestions for this project?
The hero rushed to aid the damsel in distress.
Aid or aid may mean the help or assistance given, as a noun ( thing or idea )--
He was quick to offer his aid.
One may come "to the aid", meaning to the assistance or help of--
"Now is the time for all good men to come to the aid of the party..."
He came to the aid of the damsel in distress.
Aid or aid may refer to a thing or idea that is helpful--
Some people find that music is an aid to their memories.
The old man wears a hearing aid.

-ade  is a suffix ( added to the end of a word ) meaning a soft drink made with citrus or other fruits--
Most people like lemonade in the summer.
-ade  is added to some words to denote a process or state of being--
The cannonade reduced the building to rubble.
We tire of watching the movies repeat the same escapades.

Aide or aide means a personal assistant to someone--
He served as the general's aide for two years.
She was a nurse's aide before going to college.

Now that you know that, you can say--
"The chief asked his aide to aid the person with the pitcher of lemonade, who had been startled by the escapade."

Note--"AIDS" is an acronym for "acquired immune deficiency syndrome", a disease--
He was diagnosed with AIDS, and very upset about it.
"Aids" or "aids" may be the third person singular ( he, she or it ) form of "aid"--
The fireman aids people in burning buildings.
"Aids" or "aids" may also be the plural ( more than one ) of "aid", meaning a thing or idea with a helpful function--
The old man has had three hearing aids, but none of them really helped.
"Aides" or "aides" is the plural ( more than one ) form of "aide"--
The general has four full-time aides on his staff.