Lecture, Address
noun, verbal noun
Perform your lecture. This is your lecture. This is your address to the people.
こうえん
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
その講師、講演会場にリムジンで登場したんだよ。
The lecturer came to the lecture hall in a limo.