Homonym: sharpen (Enhance)
To "sharpen" means to make something sharper or more pointed. This can apply to physical objects, like knives or pencils, where the edge is honed to improve cutting or writing ability. Sharpening can be done using various tools, such as a whetstone for knives or a pencil sharpener for pencils.
In a broader sense, "sharpen" can also refer to enhancing skills or knowledge. For example, someone might sharpen their critical thinking abilities through practice and study. This figurative use emphasizes improvement and refinement in various areas of life, including personal development and professional skills.