Dissert is a verb that means to deliver a formal discourse or dissertation on a specific topic. However, there are numerous other words that can be used to express this idea, including expound, explicate, elaborate, articulate, discourse, orate, pontificate, opine, and lecture. Each of these words carries a slightly different connotation and may be more appropriate in certain contexts. For example, expound may be useful if you are trying to explain something in detail, while pontificate may be effective if you are trying to assert your authority on a topic. Regardless of the word you choose, be sure to use it consistently and accurately to ensure that your writing or speaking is clear and effective.