sharpener vs implement

sharpener and implement both are nouns.

Word	Noun	Adjective	Verb	Adverb
sharpener	Yes	No	No	No
implement	Yes	No	Yes	No

As nouns, implement is a hypernym of sharpener; that is, implement is a word with a broader meaning than sharpener:

sharpener: any implement that is used to make something (an edge or a point) sharper
implement: instrumentation (a piece of equipment or tool) used to effect an end

sharpener (noun)	implement (noun)
any implement that is used to make something (an edge or a point) sharper	instrumentation (a piece of equipment or tool) used to effect an end

sharpener (verb)	implement (verb)
	pursue to a conclusion or bring to a successful issue
	ensure observance of laws and rules
	apply in a manner consistent with its purpose or design