A formal talk on a serious subject given to a group of people, especially students. noun
The professor gave a lecture on the history of art.
She attended a lecture on quantum physics at the university.
A long, serious speech, especially one given as a scolding or reprimand. noun
After being late again, he received a lecture from his boss.
Her parents gave her a lecture about the importance of responsibility.
To deliver a formal talk on a subject to an audience. verb
He lectures on European history at the local college.
She was invited to lecture at the international conference.
To give someone a long or serious talk to criticize or reprimand them. verb
His mother lectured him about the dangers of smoking.
The teacher lectured the students about their poor behavior.