Definition

1. Noun:
   • Barometer: A scientific instrument used to measure atmospheric pressure. The term specifically refers to the device itself.
   • Atmospheric pressure gauge: A more descriptive term for an instrument that gauges the pressure exerted by the atmosphere.

Usage Examples

• Noun:
  • Nhà khí tượng học sử dụng khí áp kế để dự báo thời tiết. (The meteorologist uses a barometer to forecast the weather.)
  • Chỉ số trên khí áp kế đang giảm xuống, báo hiệu một cơn bão sắp đến. (The reading on the barometer is falling, indicating an approaching storm.)
  • Khí áp kế là một công cụ quan trọng trong ngành hàng hải. (The barometer is an important tool in maritime navigation.)

Advanced Usage

• "the barometer of something": (a metaphorical use in English, not a direct translation of "khí áp kế") Something that indicates changes or trends, similar to how a barometer indicates atmospheric pressure changes.
  • The stock market is often seen as a barometer of the economy. (Thị trường chứng khoán thường được xem là một thước đo của nền kinh tế.)

Variants and Related Words

• Phong vũ biểu (n): An older, literary Vietnamese term for a barometer, literally "rain and wind gauge."
• Áp kế (n): A more general term for a pressure gauge, which can measure pressure in various contexts (e.g., tire pressure, gas pressure), not specifically atmospheric.
• Khí áp (n): Atmospheric pressure. This is what the "khí áp kế" measures.

Synonyms

• Atmospheric pressure meter: A direct descriptive synonym in English.
• Weather glass: An older, informal term for a simple barometer.

Related Phrases

(Note: "Khí áp kế" is a compound noun and does not form phrasal verbs. The following are related operational phrases.) - Đo khí áp: To measure atmospheric pressure. - Họ đang đo khí áp bằng một chiếc khí áp kế chính xác. (They are measuring atmospheric pressure with an accurate barometer.) - Chỉ số khí áp: Barometric reading/pressure reading. - Chỉ số khí áp hôm nay rất cao. (The barometric reading is very high today.)

Related Idioms

(Note: There are no common Vietnamese idioms directly using "khí áp kế." The related concept is often expressed through the metaphorical use of "barometer" in English, as shown in the Advanced Usage section.)

1. Barometer