In painting, a small, edge-less, more or less flexible steel blade used to mix paint on a palette and sometimes to apply paint to a surface.
A mason’s tool, used in spreading and dressing mortar, and breaking bricks to shape them.
A gardener’s tool, shaped like a scoop, used in taking up plants, stirring soil etc.
A tool used for smoothing a mold.
To apply (a substance) with a trowel.
To pass over with a trowel.
To apply something heavily or unsubtly.