Definitions

1. Adjective:
   • Well-informed, knowledgeable: Describes a person who is aware of many things, has broad knowledge, or keeps up-to-date with information and current events.
   • Perceptive, astute: Describes a person who is quick to notice, understand, and learn things.

Usage Examples

• Adjective:
  • Anh ấy là một người rất hay biết về công nghệ. (He is a very knowledgeable person about technology.)
  • Cô phóng viên này rất hay biết các tin tức mới nhất. (This reporter is very well-informed about the latest news.)
  • Để hay biết tình hình, bạn nên đọc báo mỗi ngày. (To stay informed about the situation, you should read the newspaper every day.)

Advanced Usage

• The word "hay biết" often implies an active, habitual state of being informed rather than just knowing a single fact. It describes a characteristic of a person.
• It can be used in a slightly formal or literary context to praise someone's intellect or awareness.

Variants and Related Words

• Hiểu biết (n/v): Knowledge / to understand. This is a more common and neutral term for "knowledge" or "to have knowledge of."
  • Anh ấy có hiểu biết sâu rộng. (He has extensive knowledge.)
• Thông thái (adj): Wise, erudite. A stronger term implying deep wisdom and learning.
• Am hiểu (v): To have a deep, proficient understanding of a specific field.
  • Ông ấy am hiểu về lịch sử. (He has a deep understanding of history.)

Synonyms

• Thông tin (adj): Informed.
• Tinh thông (adj): Proficient, expert.
• Sành sỏi (adj): Savvy, experienced (often in a specific, practical area).

Related Phrases (Collocations)

• Con người hay biết: A well-informed/knowledgeable person.
• Tính hay biết: The trait of being knowledgeable.
• Ít hay biết: Poorly informed, unaware.

1. know