OXFORD DICTIONARY
You, pron. (obj. you; poss. your, yours)
1 used with reference to the person or persons addressed or one such person and one or more associated persons.
2 (as int. with a noun) in an exclamatory statement (you fools!).
3 (in general statements) one, a person, anyone, or everyone (it's bad at first, but you get used to it).
you-all US colloq. you (usu. more than one person). you and yours you together with your family, property, etc. you-know-what (or -who) something or someone unspecified but understood.
OE eow accus. & dative of ge YE(1) f. WG: supplanting ye because of the more frequent use of the obj. case, and thou and thee as the more courteous form
THESAURUS
You
I, I myself, alter, alter ego, alterum, better self, ego, ethical self, he, her, herself, him, himself, inner man, inner self, it, me, my humble self, myself, number one, oneself, other self, ourselves, self, she, subconscious self, subliminal self, superego, them, themselves, they, yours truly, yourself, yourselves