Conjunctions are words that join words, phrases, or clauses together. They can show relationships between the elements they connect, such as:
* Coordination: Joining elements of equal grammatical rank (e.g., "and," "but," "or," "nor," "for," "yet," "so")
* Subordination: Joining a dependent clause to an independent clause (e.g., "because," "although," "since," "while," "if," "when," "after")
Examples:
* Coordination: "I went to the store and bought some groceries."
* Subordination: "I went to the store because I needed milk."