sharpen

As verbs the difference between harness and sharpen

is that harness is to place a harness on something; to tie up or restrain while sharpen is (transitive|sometimes|figurative) to make sharp.

As a noun harness

is (countable) a restraint or support, especially one consisting of a loop or network of rope or straps.

As a noun taxonomy

is the science or the technique used to make a classification.

As a verb sharpen is

(transitive|sometimes|figurative) to make sharp.

As a verb sharpen

is (transitive|sometimes|figurative) to make sharp.

As an acronym pet is

(organic compound) polyethylene terephthalate.

As a verb sharpen

is (transitive|sometimes|figurative) to make sharp.

As a noun knifegrinder is

one whose trade is the sharpening of knives on a grindstone.

As verbs the difference between sharpen and focalize

is that sharpen is to make sharp while focalize is to focus, or to adjust a focus.

As a verb sharpen

is to make sharp.

As an adjective unsharpened is

not sharpened.