Here's a breakdown of its meanings and uses:
Meanings:
* Choice: "Which" often implies a selection from a group of options. For example, "Which book do you want to read?"
* Identity: It can also refer to something specific that has already been mentioned. For example, "The red car, which is parked in the driveway, is mine."
* Relationship: "Which" establishes a connection between the dependent clause and the noun/pronoun it modifies. For example, "The house which is on the hill is for sale."
Uses:
* In questions: "Which book do you want to read?"
* In defining clauses: "The car which is parked in the driveway is mine."
* In non-defining clauses: "The house, which is on the hill, is for sale."
Examples:
* Choice: "Which color do you prefer, blue or green?"
* Identity: "The dog, which is a golden retriever, is very friendly."
* Relationship: "The restaurant which serves Italian food is popular."
Important Note:
* "Which" is used to introduce a clause that provides essential information about the noun/pronoun it modifies. It cannot be removed without changing the meaning of the sentence.
* If the clause provides non-essential information, it is usually separated by commas and can be removed without changing the core meaning of the sentence.
I hope this explanation helps!