flourish-v; 2 Senses

Sense Number 1: Thrive physically, psychologically, or in one's career; prosper or grow.

The deer population in this town is thriving.
Business is flourishing.
Pikaia flourished at the same time as the Burgess fauna.

VerbNet: exist-47.1-1,gorge-39.6
FrameNet: Thriving
PropBank: flourish.01
WordNet 3.0 Sense Numbers: 1, 2

Sense Number 2: Brandish, usually a firearm.

She flourished her gun for all to see.
It was better to go to the next town to flourish the pistol.
It's not like we go around Iraq flourishing ICBMs.

VerbNet: NM
FrameNet: NM
PropBank: NM
WordNet 3.0 Sense Numbers: 3