Synonyms:
lecture, lecturing
Meaning: teaching by giving a discourse on some subject (typically to a class)
Usage examples
"I should call it jolly," said Lily, "if I could get up and go out. Do you remember lecturing me about talking slang the day that he first came?"
Little we thought he should ever own it, or that John would be pointing it out to his own boys, lecturing them on "undershot," and "overshot," as he used to lecture me.
The old man was busy in examining the maw of a trout which he had just killed, to discover by its contents what insects were seasonable for bait, and was lecturing on the subject to his companions, who appeared to listen with infinite deference.