To cause a liquid to flow through or over something, especially to clean it. She flushed the pipes with water to remove any debris.
To become red and hot, typically as a result of strong emotion or heat. He flushed with embarrassment when he realized his mistake.
To drive out or force into the open. The hunters flushed the birds from the bushes.
To level the surface of something by filling in gaps or removing protrusions. The carpenter flushed the surface of the table to make it smooth.