What is a conjunctive adverb?

A conjunctive adverb is a type of adverb used to connect and modify two independent clauses. It does this by turning the second clause into an adverbial modifier of the first.

Conjunctive adverbs can be used as transition words to introduce condition, consequence, clarification, comparison, and contrast (e.g., “The weather is fine now. However, it is going to rain later.”). But it’s important not to confuse them with conjunctions.