drug withdrawal vs conclusion

drug withdrawal and conclusion both are nouns.

Word	Noun	Adjective	Verb	Adverb
drug withdrawal	Yes	No	No	No
conclusion	Yes	No	No	No

As nouns, conclusion is a hypernym of drug withdrawal; that is, conclusion is a word with a broader meaning than drug withdrawal:

Other hypernyms of drug withdrawal include ending, termination.

drug withdrawal (noun)	conclusion (noun)
the termination of drug taking	the act of ending something
	the act of making up your mind about something
	a position or opinion or judgment reached after consideration
	an intuitive assumption
	the last section of a communication
	the proposition arrived at by logical reasoning (such as the proposition that must follow from the major and minor premises of a syllogism)
	a final settlement
	event whose occurrence ends something
	the temporal end; the concluding time