 Aider
Aider
Pronunciation : Aid"er
Part of Speech : n. 
Definition : Defn: One who, or that which, aids. 
Source : Webster's Unabridged Dictionary, 1913
 Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder