To paint, or make clean or bright with a brush; to cleanse or improve; to renew.

To cause to shine; to make smooth and bright; to polish; specifically, to polish by rubbing with something hard and smooth.

1. To bring to a highly developed, finished, or refined state; SYN. round, round off, polish up, brush up.
2. To improve or perfect by pruning or polishing; SYN. refine, fine-tune, down.
3. To give a shiney surface to (usually by rubbing or buffing); SYN. smooth, smoothen, shine.