your

The word “your” means belonging to, or associated with, the person or people being spoken to. In plain terms, belonging to you.

“Your” is pronounced yaw (/jɔɹ/ in IPA).

Here is “your” used in a sentence: “Please bring your ID to the appointment.”

“Your” is a determiner.

The word “your” comes from Old English. From Old English ēower, the possessive form of "you," ultimately from a Proto-Germanic root shared with Dutch jouw and German euer.

“Your” is a very common word in modern English, usually learned at around the A1 level.

"Your" is a possessive word meaning belonging to the person you are addressing ("your keys"), while "you're" is the contraction of "you are" ("you're late"). A quick test: if you can expand the word to "you are" and the sentence still makes sense, you need "you're."

"Your" must be followed by a noun ("your seat"), while "yours" stands alone and replaces "your + noun" ("this seat is yours"). Note that "yours" never takes an apostrophe — "your's" is always wrong.

Both. English uses "your" whether you are addressing one person or many: "your coat" to one friend and "your coats" to a group are equally correct. Context, or the noun that follows, usually makes clear which is meant.