The term "aide" has several meanings depending on its context.
1) In French, it means helper or assistant. For example, "Je vais demander de l'aide à mon ami." (I am going to ask for help from my friend.)
2) In American English, the term is often used in politics and government to refer to a person who works as an assistant to a higher-ranking official or elected representative. For example, "The senator has several aides helping him with his work."
3) It can also be used as a proper noun to refer to specific organizations or programs that provide assistance to people in need. An example of this is the international humanitarian organization known as Aide Médicale Internationale (AMI), which provides medical aid and assistance to populations affected by conflict, natural disasters, epidemics or exclusion from healthcare.