Discourser is a term normally associated with persons who engage in public speaking or delivering lectures, but there are a number of synonyms that can be used interchangeably with this word. Some of the alternative words to consider include orator, speaker, lecturer, public speaker, narrator, spokesperson, and speechmaker. Each of these terms carries unique nuances and connotations, but they all broadly describe someone who speaks publicly or addresses a group of people. Depending on the context, one of these synonyms may be more suitable than the others, so it's important to consider the intended audience and purpose when selecting an appropriate descriptor for a particular speaker.