lecture

American  

[lek-cher] / ˈlɛk tʃər /

noun

1. a speech read or delivered before an audience or class, especially for instruction or to set forth some subject.

   a lecture on Picasso's paintings.

   Synonyms:

   discourse, paper, talk, address

2. a speech of warning or reproof as to conduct; a long, tedious reprimand.

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verb (used without object)

lectured, lecturing

1. to give a lecture or series of lectures.

   He spent the year lecturing to various student groups.

verb (used with object)

lectured, lecturing

1. to deliver a lecture to or before; instruct by lectures.

   Synonyms:

   teach, address

2. to rebuke or reprimand at some length.

   He lectured the child regularly but with little effect.

   Synonyms:

   hector, admonish

lecture British  

/ ˈlɛktʃə /

noun

1. a discourse on a particular subject given or read to an audience

2. the text of such a discourse

3. a method of teaching by formal discourse

4. a lengthy reprimand or scolding

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verb

1. to give or read a lecture (to an audience or class)

2. (tr) to reprimand at length

Other Word Forms

• prelecture noun
• unlectured adjective

Etymology

Origin of lecture

First recorded in 1375–1425; late Middle English, from Medieval Latin lēctūra “a reading”; lection, -ure

Explanation

When your teacher stands up in front of you and teaches by talking about the latest chapter you've read or explaining how to do a new math problem - he is giving a lecture. A lecture is most often used to describe a method of teaching, particularly popular in college, where professors give organized talks as lessons to large groups of students. It is not quite as positive when children level the term at their parents — "Don't lecture me!" — for criticizing their clothes, their friends or their music. Lecture can also be used to describe any public talk, most often by an expert.

Example Sentences

The museum has also purchased a new building just across the freeway on Sepulveda Boulevard, where it will host an array of public programming — family festivals, lecture series and other arts programs.

From Los Angeles Times • Apr. 9, 2026

“The longer energy prices remain elevated, the more households will need to confront tradeoffs,” said Philip N. Jefferson, vice chairman of the Federal Reserve, at a recent lecture.

From Los Angeles Times • Apr. 9, 2026

In 2016, he went viral after delivering a lecture in which he summarised the 34 elite universities that set their own admission standards, rather than follow national cut-off scores.

From BBC • Mar. 27, 2026

Government spokesman Pavlos Marinakis insisted that the venue chosen, a remodelled university lecture hall in the central city of Larissa, was one of the two biggest courtrooms in Greece.

From Barron's • Mar. 23, 2026

She would also lecture him on his duty to set a good example for little mice.

From "Ralph S. Mouse" by Beverly Cleary

Related Words

• admonish
• chide
• preach
• scold