[ˈbɔɪənt], (Adjective)

Definitions:
- able or tending to keep afloat or rise to the top of a liquid or gas

- cheerful and optimistic
(e.g: the conference ended with the party in a buoyant mood)

- (of an economy, business, or market) involving or engaged in much successful trade or activity
(e.g: car sales were buoyant)


Phrases:

Origin:
late 16th century: from French bouyant or Spanish boyante, present participle of boyar ‘to float’ (see buoy)