* Simple: The boat's buoyancy kept it afloat despite the rough waves.
* Figurative: Her buoyancy in the face of adversity was truly inspiring.
* Technical: The engineer calculated the buoyancy of the submarine to ensure it could dive and resurface safely.
* Descriptive: The colorful balloons filled with helium, their buoyancy lifting them towards the sky.
* Contrastive: While the heavy rock sank, the cork's buoyancy allowed it to float.