Speech, conversation, discussion.
speech as in a presentation or lecture = ne'um (× ××•×) speech as in speaking ability = dibur (דיבור)
Extempore speech involves speaking without prior preparation, while a lecture is a structured presentation that is usually planned and organized. Extempore speech is more spontaneous and may involve speaking about a topic off the top of one's head, while a lecture typically involves a speaker delivering information in a more formal and structured manner.
Harangue most likely means a long and aggressive speech or lecture, typically given in a forceful or passionate manner.
A speech given to an audience is commonly referred to as an "address" or a "lecture."
Sermon means a talk on religious subject whereas lecture means a speech giving information about subjects
Peace
Peace
Speech as a noun, talk as a verb, and there really are no antonyms.
Kind Lecture!! ?
Lecture, oration, redress.
Bill Moggridge gave a lecture called designing interactions for Stanford University in 2007. He introduced forty influential designers who have shaped interaction with technology. You can find a video of this lecture online on websites such as YouTube.