Definition

1. Verb:
   • To lecture: To give a formal, detailed spoken presentation on a particular subject, especially as a method of teaching in an academic setting. It implies a one-way flow of information from the speaker to an audience.
   • To expound: To explain a theory, idea, or subject in a comprehensive and detailed manner.

Usage Examples

• Verb:
  • Giáo sư sẽ diễn giảng về lịch sử Việt Nam. (The professor will lecture on Vietnamese history.)
  • Anh ấy diễn giảng các nguyên lý triết học một cách rõ ràng. (He expounds philosophical principles clearly.)

Advanced Usage

• The word is formal and is typically used in academic, educational, or serious intellectual contexts. It is less common in everyday conversation than simpler words like "giảng" (to teach/lecture) or "trình bày" (to present).

Variants and Related Words

• Bài diễn giảng (n): A lecture (the speech itself).
  • Bài diễn giảng của ông ấy rất lôi cuốn. (His lecture was very engaging.)
• Diễn giả (n): Lecturer, speaker.
  • Diễn giả chính là một nhà khoa học nổi tiếng. (The keynote speaker is a famous scientist.)

Synonyms

• Lecture: To deliver an educational talk to an audience.
• Expound: To present and explain a theory or idea systematically.
• Explicate: To analyze and develop an idea in detail.

Related Idioms

• itself is not commonly used in idiomatic expressions. Its usage is typically literal and formal.

1. Lecture on
   • Diễn giảng về văn học cổ điển
     To lecture on classical literature