Visual meaning of 'sharpen'? - learn with images, example in daily life

Visual illustration of sharpen: (sometimes figurative) To make sharp. - Image 1

sharpen: (sometimes figurative) To make sharp. - Thumbnail 1

sharpen: (sometimes figurative) To make sharp. - Thumbnail 2

sharpen: (sometimes figurative) To make sharp. - Thumbnail 3

verb

(sometimes figurative) To make sharp.

"to sharpen a pencil or a knife or a musical note"

Visual illustration of sharpen: To become sharp. - Image 1

sharpen: To become sharp. - Thumbnail 1

sharpen: To become sharp. - Thumbnail 2

verb

To become sharp.

"The old knife will sharpen with each pass on the whetstone. "