writing implement vs implement

writing implement and implement both are nouns.

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

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

writing implement: an implement that is used to write
implement: instrumentation (a piece of equipment or tool) used to effect an end

writing implement (noun)	implement (noun)
an implement that is used to write	instrumentation (a piece of equipment or tool) used to effect an end

writing implement (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