buoyancy

/'bɔiənsi/

Thân thiện

The child's buoyancy made her bounce with joy on the trampoline.

Definition

1. Noun:
   • The ability to float in a liquid or gas: The physical property of an object that causes it to be lifted by a fluid, opposing the force of gravity.
   • Irrepressible liveliness and resilience of spirit: A cheerful, optimistic, and resilient attitude that tends to recover quickly from setbacks.
   • The ability of a business or market to maintain or increase activity levels: In economics, the tendency for prices or activity to remain strong or show an upward trend.

Usage and Examples

• Physical Property (Floating):
  • The buoyancy of the life jacket kept him afloat.
  • Salt water provides greater buoyancy than fresh water.
• Cheerful Resilience:
  • Her natural buoyancy helped her overcome the disappointment.
  • He faced the criticism with remarkable buoyancy.
• Economic Activity:
  • The buoyancy of the housing market surprised analysts.
  • There are signs of buoyancy in consumer spending.

Advanced Usage

• "Buoyancy of spirit": A phrase emphasizing resilient cheerfulness.
  • Despite the hardships, she maintained a buoyancy of spirit that inspired everyone.
• "Neutral buoyancy": A state in scuba diving where an object neither sinks nor floats.
  • The diver achieved neutral buoyancy to hover effortlessly in the water column.

Variants and Related Words

• Buoyant (adj): Having or showing buoyancy.
  • Cork is a buoyant material.
  • She remained buoyant throughout the crisis.
• Buoy (n/v): A floating marker (noun) or to keep afloat or uplift (verb).
  • The channel is marked by red buoys. (noun)
  • Good news buoyed our hopes. (verb)

Synonyms

• Resilience: The capacity to recover quickly from difficulties. (For the attitude sense)
• Floatation: The action of floating in a liquid. (For the physical sense)
• Cheerfulness: The quality of being noticeably happy and optimistic.

Antonyms

• Gravity: Solemnity or seriousness of manner. (For the attitude sense)
• Heaviness: The quality of having great weight; sinking. (For the physical sense)
• Depression: A state of economic decline or low spirits.

Related Phrases and Idioms

• "A buoyant personality": Describes a person who is characteristically cheerful and resilient.
  • His buoyant personality makes him popular in the office.
• "Buoyant demand": An economic term indicating strong, sustained consumer interest.
  • Buoyant demand for the new product led to record sales.

Học thuật

Noun

1. irrepressible liveliness and good spirit
   • I admired his buoyancy and persistent good humor
2. the tendency to float in water or other liquid
3. the property of something weightless and insubstantial
4. cheerfulness that bubbles to the surface

Từ đồng nghĩa

• irrepressibility
• airiness
• perkiness