A conjunction is a word that connects words, phrases, or clauses to form more fluid and complex sentences. There are three types of conjunctions: coordinating (and, but, or, nor, for, so, yet), subordinating (because, although, since, while), and correlative. For example, in "I wanted to go outside, but it was raining," the conjunction "but" unites two separate phrases. Conjunctions increase sentence form, readability, and communication consistency. Mastering their use allows you to make logical links between ideas in both spoken and written language.