What is the meaning of Trowel?

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.

Source: wiktionary.org