you
$ \mathrm{you} weak form /ju/, strong form /juː/
pronoun
1 used as the subject or object of a verb or after a preposition to refer to the person or people being spoken or written to
You said you knew the way.
I thought she told you.
Can I sit next to you?
I want both of you to help.
I don't think that hairstyle is you (= it doesn't suit your appearance or personality).
2 used with nouns and adjectives to speak to somebody directly
You girls, stop talking!
You stupid idiot!
3 used for referring to people in general
You learn a language better if you visit the country where it is spoken.
It's a friendly place—people come up to you in the street and start talking.
saying の you はだいたいこれ
「一般の人」を指す用法は使用頻度が高い
一般の人を指すのは people や、代名詞として we, one も使われる
one を使うと堅苦しい感じになる。公式に威厳をこめるのに適切
we はやや排他的な感じがある
「他の人は知らないが、私たちは」という印象
それに対して you は親しみやすい
『身につく英語のためのA to Z』 p179
Idioms
you and yours
​you, your family and your close friends
I wish you and yours all the best for the year ahead!
Word Origin
Old English ēow, accusative and dative of gē (see the pronounye), of West Germanic origin; related to Dutch u and German euch. During the 14th cent. you began to replace the pronoun ye, thou, and thee; by the 17th cent. it had become the ordinary second person pronoun for any number and case.