Definition of buoyancy in English:

Share this entry


Pronunciation: /ˈbɔɪənsi/


[mass noun]
1The ability or tendency of something to float in water or other fluid.
Example sentences
  • My lungs then re-expand, my wetsuit buoyancy returns and I float to the surface.
  • Built into each wheel unit was a flotation tank with sufficient buoyancy to float the unit.
  • The boats took on more water than they had buoyancy.
ability to float, tendency to float, lightness
1.1The power of a liquid to keep something afloat: she plunged into the sea, grateful for the buoyancy of the salt water
More example sentences
  • Water's buoyancy makes a swimmer feel weightless and reduces stress on joints in the spine, hips and knees.
  • Raziel, on the other hand, begins the game in the spectral realm, a plane where lost souls gather, objects can't be moved and water has no buoyancy.
  • And because of its buoyancy, water is also used in rehabilitation programs.
lift, lifting effect
2A cheerful and optimistic attitude or disposition.
Example sentences
  • At his Balzacian best, he radiated warmth, buoyancy, optimism and hope; but in his more Dostoyevskian mode, he was consumed by doubt, loneliness, envy and disappointment.
  • Where a month ago there was optimism and buoyancy, there is hopelessness.
  • Discussions became political after next to no time (and all the other Kiwis were National or centre-right) so there was a bit of hope and buoyancy that National and Dr Brash will win this year.
3A high level of activity in an economy or stock market: there is renewed buoyancy in the demand for steel
More example sentences
  • Much of the Korean economy's buoyancy can be traced to the effects of banking reforms since Korea's 1997 financial crisis.
  • After a long time, the revived projects are exceeding the value of projects shelved, showing overall buoyancy in the economy and investment.
  • The health of a country's economy should not be judged by the buoyancy of its stock market or its currency's strength.
vigour, strength, high level of activity, burgeoning, resilience, growth, development, progress, improvement, expansion, mushrooming, snowballing, ballooning

Words that rhyme with buoyancy


For editors and proofreaders

Line breaks: buoy|ancy

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.