oblige vs article

oblige is not a noun while article is a noun.

Word	Noun	Adjective	Verb	Adverb
oblige	No	No	Yes	No
article	Yes	No	Yes	No

As verbs, article is a hyponym of oblige; that is, article is a word with a more specific, narrower meaning than oblige:

Other hyponyms of oblige include pledge, indent, indenture, tie down.

oblige (noun)	article (noun)
	one of a class of artifacts
	nonfictional prose forming an independent part of a publication
	(grammar) a determiner that may indicate the specificity of reference of a noun phrase
	a separate section of a legal document (as a statute or contract or will)

oblige (verb)	article (verb)
bind by an obligation; cause to be indebted	bind by a contract; especially for a training period
provide a service or favor for someone
force somebody to do something