“Thus” is a conjunctive adverb that can function as a conjunction to show the relationship between two clauses in a sentence. It is used to indicate a conclusion or result based on the information presented in the previous clause. In the context of connecting cause and effect, “thus” serves to demonstrate the logical progression from one event or action to its outcome.

When used in a sentence to establish a cause-and-effect relationship, “thus” typically follows the cause and precedes the effect, emphasizing the resulting consequence. It often imparts a sense of formality or sophistication to the language, compared to more casual conjunctions like “so.” By incorporating “thus” into a sentence, the writer or speaker aims to provide a clear and reasoned explanation, reinforcing the argument with a definitive and logical conclusion.

In summary, “thus” plays a crucial role as a conjunction in signaling the relationship between cause and effect, offering a precise and structured way to present conclusions or consequences in a more formal tone, thereby enhancing clarity and coherence in written or spoken communication.