Lecturer (noun)

1. A person who delivers a lecture, especially one who is employed to teach at a college or university.
2. A person who gives talks or lectures on a particular subject, especially as a profession.

Origin:

From middle english, from old french lecteur, from latin lector, reader.

Examples:

1. The lecturer was knowledgeable and engaging, making complex ideas accessible to her audience.
2. As a lecturer at the university, she was respected for her research and her ability to convey difficult concepts.
3. The students eagerly attended the lectures, eager to learn and to get a glimpse of the world beyond their own experiences.
4. The lecturer's talk was both informative and entertaining, full of jokes, anecdotes, and colorful stories.
5. As a public speaker and lecturer, she was in high demand, traveling around the country and the world to share her ideas.