what is 'Help' in French?
Depends on the context (this is a problem when translating from English to real languages).
Help (noun) - Aide (feminine) or Secours (f)
(I) help - Aide
(You singular) help - Aides
(We) help - Aidons
(You plural) help - Aidez
Note: Unlike Spanish, you need the appropriate pronoun when these are in a sentence.
Gavier covers Help as an imperative/interjection in French.