the property of something weightless and insubstantial
source: WordNet 3.0
the tendency to float in water or other liquid
source: WordNet 3.0
irrepressible liveliness and good spirit
I admired his buoyancy and persistent good humor.
source: WordNet 3.0
The property of floating on the surface of a liquid, or in a fluid, as in the atmosphere; specific lightness, which is inversely as the weight compared with that of an equal volume of water.
