lb

Thân thiện

A bag of flour is labeled as weighing 5 lb.

Definition

Noun: 1. A unit of mass: "lb" is an abbreviation for "pound," a unit of weight in the avoirdupois system equal to 16 ounces or approximately 0.4536 kilograms. It is commonly used in the United States and other countries that use imperial units.

Usage Examples

• Noun:
  • The package weighs 5 lb. (The package weighs 5 pounds.)
  • The recipe calls for 2 lb of flour. (The recipe requires 2 pounds of flour.)
  • He can bench press 200 lb. (He can lift 200 pounds in a bench press exercise.)

Advanced Usage

• "lb" vs. "lbs": The abbreviation "lb" is used for both singular and plural in many contexts, especially in scientific or technical writing. However, "lbs" is also commonly used to indicate the plural form in everyday writing.
  • The maximum load is 500 lb. (Formal/technical)
  • I need to lose a few lbs. (Informal)

Variants and Related Words

• Pound (n): The full word for which "lb" is the abbreviation.
  • One pound is equal to 16 ounces.
• Ounce (n): A smaller unit of weight; 16 ounces equal one pound (lb).
  • There are 16 ounces in a pound.
• Kilogram (kg) (n): A metric unit of mass; one pound (lb) is approximately 0.4536 kilograms.
  • Convert 10 lb to kg.

Synonyms

• Pound: The full term for the same unit of weight.

Notes on Usage

• The abbreviation "lb" is derived from the Latin word "libra," which was a Roman unit of weight. It is typically written in lowercase.
• In formal and scientific contexts, a period (lb.) is sometimes used, but it is often omitted in modern usage, especially when combined with a number (e.g., 10 lb).
• It is primarily used as a written abbreviation. In speech, the full word "pound" or "pounds" is always used.
  • Written: 10 lb
  • Spoken: "ten pounds"

Học thuật

Noun

1. 16 ounces avoirdupois
   • he got a hernia when he tried to lift 100 pounds

Từ đồng nghĩa

• pound