Used attributively to describe tools, stones, etc., related to the act or purpose of sharpening.
Definitions
Relating to or intended for sharpening; used before a noun to denote a tool, device, or process that sharpens. He bought a sharpening stone to keep his knives in top condition.
Used as an attributive noun to modify another noun (e.g., "sharpening kit")
Definitions
Relating to or intended for the process, tools, or activity of making something sharp. He bought a sharpening kit to maintain his kitchen knives.
sharpeninggerund / present participle Used attributively: e.g., "a sharpening stone"
Definitions
Serving to sharpen or make sharp; used to describe a tool, device, or action that sharpens. The sharpening wheel produces a finely honed edge.
sharpengerund / present participle ‘sharpening’ is used attributively (e.g., “a sharpening stone”) and thus functions as an adjective.
Definitions
Engaged in or intended for the act of making something sharp. She bought a new sharpening tool for her workshop.