This document defines conjunctions and provides rules and examples for their use. Conjunctions are parts of speech that connect words, phrases, clauses, or sentences. Some key rules are that conjunctions connect thoughts and ideas as well as other parts of speech, they are useful for making lists, and the parts of sentences joined by conjunctions must agree. The document then lists common conjunctions like and, but, or, so, and yet. Finally, it provides examples of conjunctions being used to join words, phrases, and sentences.